Jul 23, 2016 #1 It will remain just a little more viscose when hot than a 10w30, but the difference is small. 29 Oct 2021

At operating temperature, 10w30 is NOT heavier. So, we can see, 10W40 is thicker than 5W30. So, this means that when you are asking can you use 10w30 instead of 5w20, the thinner 5w20 will circulate faster, and move better across bearing tolerance during ignition in the winter or cooler climates.

Can I use 10W-40 instead of 5w30? I use 10-40 during the winter and rotella 15-40 in the summer. The best synthetic 0W-40 is Mobil1 SuperSyn. In most cases, no, you cant.

The second number shows how the oil flows at the normal operating temperatures of the engine. Nov 22, 2020. Below 40F and down to -10F, use 10W-30. This will make your engine lose lubricity and increase engine wear and friction. A 10w-40 is better at around 6 times thicker and a 0w-40 is much better at about 4 times thicker. What oil should I use for 100k miles? A 30-weight oil is between 9.3 and 12.4 cst at 100C. Thread starter hipster dufus; Start date Jul 23, 2016; hipster dufus Petty Officer 2nd Class. Can I Use 10w40 Instead Of 5w40? This higher viscosity oil is designed for hotter temperatures and can handle the added heat stress from the environment.

The brand recommends SAE 10W 30 SL Grade engine oil for Hero XPulse 200.

This requires thicker viscosity oil such as 10W-40.

Thicker oil offers better lubrication of motor and engine parts. What weight oil should I use in my generator? Can 10W-40 be used instead of 10W 30? Synthetic 5W-30 can be used in all temperatures. 10w30 is thicker than 5w30 because it has a higher viscosity in low temperatures. What oil should I use for 100k miles? The truck has about 10qts of 10w-30 and 2.5-3qts of 15w-40 as it sits right now. This machine takes 7 quarts with one filter. This means that when you pour 10W40 into your engine, it will have a harder time flowing through the engine and moving around the parts. The polymers can shear and burn forming deposits that can cause ring sticking and other problems. The low number will dictate that the motor oil will be thin and have less static friction in the engine. The oils MAY carry a higher API Rating BUT, they MUST then have the JASO MA or Here, the higher the number, the thicker the oil is.

The winter viscosity number will state the cold start performance. Why not 10W-40? (10W-30, for example) is important. What happens if I use 10W40 instead of 10W30? The recommended oil viscosity for your vehicle, according to Kia documentation, is 10W-40.

The recommended oil viscosity for your vehicle, according to Kia documentation, is 10W-40. The 10W-40 stuff HAS to have enough VI to cover a 30 point weight spread; the 10W-30, a more manageable 20 points. Between a 10W-30 and 10W-40, 10W30 motor oil would run smoother in colder climates while a 10W40 would be more effective in preventing engine wear and tear in warmer temperatures.

However, you dont want to use it if you live in hot climates or it is the What weight oil should I use in my generator? You can find 10W-40 auto oil with an API SG though. So, you can have 'thin' and 'thick' oil within the same oil grade - ie, Havoline 5W-30 is 9.7 cst@100C; while Maxlife 5W-30 is 11.5 cst@100C. The Society of Automotive Engineers (SAE) has established a numerical code system for grading motor oils according to their viscosity characteristics known as SAE J300.The original viscosity grades were all mono-grades, e.g. You can use 10w40 motor oil instead of 15w40 motor oil, but you have to know that your manufacturer should always use the recommended oil. Can I use 10w40 instead of 10w30 in my lawn mower? The synthetic engine will be fine as long as it is fully synthetic. With temperatures going down to 20F a 10W oil will not be an issue.

But when the engine reaches the operating temperature (100C), 10W30 oil will be much thinner. Honda K20 engine modifications and differences 1. The only difference between 10w30 and 10w40 oil is their thickness at engine operating (hot) temperatures. You will find that 10W30 is used more often than 10W40. What Happens If I Put 10w40 Instead Of 10w30? If you drive the vehicle in exceptionally cold weather, well below 32 degrees, you can use 5W-30 oil but even 10W-40 is still perfectly OK to use if outdoor temperatures are below freezing.

Beside above, is it bad to mix 5w30 with 5w40? Obviously, both 10w40 and 10w30 are the most common oils used for car engines. The first numbers 10W and 5W are referring to viscosity at cold so that the lower the number is the thinner the oil is at cold and vice versa. The engine gets warm in the summer. I had the quietest shifting with the 20w-50w; but in the cold morning starts, the starter didn't like that thick of an oil.

Yes, actual oil viscosity decreases with oil temperature and your oil pressure readings don't surprise me.

Some cars may allow a little flexibility for motor oil, but it is best to check with your car mechanic before making the switch. The best conventional 5W-30 is Havoline Energy. On the other hand, the second portion of the grade number describes the thickness of the oil.

Your 4-stroke dirt bike will likely use 10w-40 oil as that is one of the most common options. You have maybe done some damage since the oil level with +2 quarts is still really low. But be aware that as it's a thinner oil, it might not lubricate engine parts as well as 10W-40 as temperatures continue to increase.

If your cars recommendations say to use 10w-30 that means you should not use 5w-40 because it acts in a different way whether at cold or at operating temperature. Often 10W-30 or 10W-40, the same motor oil types that are used in vehicles, can also be used in a lawn mower. Now, as you are using 10W30, we can consider you are driving in slightly cold weather.

If you use 10W40 oil during periods of a cold engine running, the molecules of this specific oil might be too big to enter between the metal parts of the engine for proper lubrication, hence leading to damage. Therecommended oil viscosity for your vehicle, according to Kiadocumentation, is 10W-40.If you drive the vehicle inexceptionally cold weather, well below 32 degrees, you can use5W-30 oil but even 10W-40 is still perfectly OK touse if outdoor temperatures are below freezing.

You should choose synthetic 5W-30 oil that is of high quality. It would be best if you do not go for 10W40 to 5W30. darn near every honda atv i have serviced (literally all models) call for 10w40.

See available options. Here, the lower the number, the thinner the oil. Is 10w40 thicker than 20w50? -10 F to 30 F (must use engine block heater) SAE 10W-30-10 to 0 F (must use engine block heater) SAE 5W-30; How much oil does a 2003 Dodge Ram 5.7 Hemi take? So, 10W-40 can be a more efficient option, both cost, and engine-wise. It's heavy enough to protect your engine on startup and it will quickly gain viscosity as it heats up. Using the wrong oil can lead to reduced lubrication and shorter engine life.

Similarly, 5W40 will be an upgrade but 5W-30 wont. SAE 30 motor oil is commonly recommended for use in a lawn mower engine, but the safest best is to use the type of oil your lawn mower manufacturer recommends. Follow the recommendation of the car manufacturer. Oil should be changed after the first 20-30 hours of operation and every 100 hours of run time thereafter. It contains the correct dosage of limslip additive eliminating the need for a additional product when used in limited slip differentials. Can I use SAE 30 instead of 10W30? If you use 10w40 instead of 10w30 it will work better for your engine. Rob Boardman I'll use XX-20 when hell freezes over. 10W-30 is also slightly less efficient at protecting your engine in extreme heat (above 140 degrees Fahrenheit). Buy Honda GN4 10W-30 Motorcycle Oil - Gallon: Motor Oils 10W-40 1 Gallon: 5 Quart: Compare with similar items. B. When to Use 10w30 vs 5w30 The only difference between these two oils is cold flow ability: a 10w30 oil will move slower than a 5w30 oil during cold startups.

However, if you use 10W40 instead of 10W30, the oil will stay in place better without leaking out or dispersing throughout your engine. And you are using it for a long time. Follow the recommendation of the car manufacturer. The difference between 10W-30 and a 10W-40 is the high temperature viscosity. While emptying my drain pans from my oil change yesterday, I noticed that one of the jugs of oil I added to the truck was 15w-40 instead of 10w-30.

If you were to use 10W-30 instead of 5W-30, the engine would be slightly less protected against wear during startup and colder temperatures. As the first portion of the grade number describes thinness, we can see, 5W30 is thinner than 10W40. For example, if youre already using 10W-40 oil, 15W-40 will be super bad for you. But be aware that as it's a thinner oil, it might not lubricate engine parts as well as 10W-40 as temperatures continue to increase. Using an oil with a low viscosity can lead to excessive metal to metal contact between moving parts. So, for example, a 5W-40 will be thinner than a 10W-30 in low temperatures. ATF FS Multi Vehicle is a full synthetic, highly shear stable, multi vehicle, red coloured, automatic transmission fluid that exceeds the requirements of Ford MerconV and GM DexronIIIH as well as many other manufacturers requirements. 5w20 is thinner at lower temperatures, whereas 10w30 is thicker at lower temperatures. 10W-30 flows easily than 10W-40 at normal operating temperatures. That said, you can still use 10W-30 motor oil in warm weather. The 5w30 motor oil and 10w30 motor oil are both thirty-weight oils, and they have the same thickness in your vehicle if it is at operating temperature. The 5w30 motor oil is better because this oil will thicken less if it is cold. However, there is eighty percent wear that can occur upon startup. The thin oil will get to the top end faster. Above 32F, use SAE 30. Gear Oil 80W-90 is a premium mineral automotive gear oil manufactured with modern extreme pressure additives and friction modifiers, meeting the requirements of API GL-5/6 and MT-1, as well as many other manufacturer specifications. Although you cant interchange these two oils, you need to understand their difference to know the best applications. If the manual says to use synthetic oil, do so. This is because all oils thin when heated, so to get the right film thickness at operating temperatures oil manufacturers The oils MAY carry a higher API Rating BUT, they MUST then have the JASO MA or Balancer shafts, a more rigid crankshaft, high compression pistons (CR = 11.5), reinforced connecting rods are installed into the cylinder block, and dual valve springs, dynamic camshafts, 20W-50 . it will over a 15w40.

If you drive the vehicle in exceptionally cold weather, well below 32 degrees, you can use 5W-30 oil but even 10W-40 is still perfectly OK to use if outdoor temperatures are below freezing. It will have the viscosity of water, and it will not protect efficiently the engine. See all 6 options . The 5W40 oil flows a lot easier when cold than the 10W40 oil. If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool- ant as soon as possible. #4 Regarding multi-vis oil, The first number (10w in 10w30) is how well the oil flows cold. Therefore, 10w-40 oil clings to the engines moving parts more than the lower viscosity 5w-30 oil. I use 10-40 during the winter and rotella 15-40 in the summer. You can apply the 10w40 motor oil in vehicles which have higher mileage because this oil is thicker when the engine is hot, thereby helping to lubricate older moving parts. Use 10W40 to start up vehicles in winter climates of temperatures about 10 degrees Celsius. 10w40 is not as reliable as 5W40 oil for engine startup in colder winter climates. GN4 10w30 Engine Oil to use in my Coleman - CT100U Mini Bike. In regard to multigrade oils, the first number in the code, such as 10W in SAE 10W-30, means that the oil can still be pumped by the engine at a temperature as low as a single grade 10W oil. 1 Dec 2021.

29 Oct 2021 I had the quietest shifting with the 20w-50w; but in the cold morning starts, the starter didn't like that thick of an oil. I've done 5w-30w Rotella, Honda GPN 10w-40w, Yamaha 20w-50w. B. Can I use 5w20 instead of 10w30? It wont make much of a difference if youre in a hotter climate area. I doubt if you will find a 10W-30 auto oil with the proper specification of SG or with a JASO MA Rating.

An oil can be viscosityed by such products by about 10 points. Using the wrong oil can lead to reduced lubrication and shorter engine life. The engine oil with a smaller first number has better flow when it is cold. The second number is the hot flow. The main differences between 10w40 vs 15w40 are in the temperature range of the oil and its viscosity at 100 C or 212 F. For example, 10W40 means that it can be used at temperatures not lower than -20 or -4 F, and 15W40 not lower than -15 or 5 F, and both engine oils can be used at 40 or 104 F.

10w30 and 10w40 motor oils both have very different viscosities, which means that it is difficult for them to mix. Can I use 10W-40 instead of 5w30? A 40-weight oil is between 12.4 and 16.8 cst at 100C. The recommended oil viscosity for your vehicle, according to Kia documentation, is 10W-40. It will boost oil pressure so more oil reaches areas that don't have direct oil pressure going through them (upper end of the motor). In general a small increase in viscosity (from 10w30 to 10w40) on a high mileage engine is a good idea. There is a small benefit of using a 10W instead of a 5W oil in that the 10W will normally have less viscosity improvers in it. This viscosity in centistokes (cSt) @ 100 degrees C is with the minimum of 9.3 cSt and a maximum of 12.5 cSt. At these temperatures, 10W40 is more viscous than 10W30. 5W-20 . Suppose your owner manual says to use 10W30. If you use 10w40 instead of 10w30 it will work better for your engine.

If you are driving in high temperatures, specifically temperatures greater than 90 degrees Fahrenheit, you should use 10w40. Therefore, a 10W-30 oil becomes a 20W-40 oil. That said, you can still use 10W-30 motor oil in warm weather. Fuel Economy 10W-30 oil tends to be more common and widely I used 10w-30 instead of 5w-30 for my Chavy engine v8. Can you go from 10W40 to 5w30? Can I use 5w20 instead of 10w30? Furthermore, what is a thicker oil than 10w30? Yes, you can make use 10W30 engine oil instead of the SAE30 in your Lawn Mower. Joined Jan 1, 2009 Messages 169. Viscosity Index Improvers (VII's) are what make muti-viscosity oils thicker. What happens if you use 10W40 instead of 10W30?

If you use 10W40 instead of 10W30, you will see other performance improvements in your engine. I agree with Jason that when you have high miles on your car 10w-30 is better even 10w-40. I have 177,000 on mine and it does burn about a quart or so every 3k. SAE 30 . Updated other options based on this selection . Your vehicle does not use 5W-30 oil. Can we use 10W40 instead of 10W30 scooter? Because 10W-30 is thinner than 15W-40 oil, its film strength can be weaker and it can be more prone to oxidation. The weight of a straight-weight 30 oil can be increased to 40. Motor is all original and will easily exceed 1 million miles. The engine power is 220 HP @ 8,000 rpm, the torque is 215 Nm @ 6,100 rpm. 10W-30 isnt any different at starting temperatures than 10W-40 but at operating temperature, the environment isnt going to have as profound an affect as if it were hot outside the vehicle. Both motor oils are designed to work in different conditions, so they function differently. An oil can be viscosityed by such products by about 10 points. Yamahalube 10W-30: Fuel Capacity: 7.7 L (2.03 US gal) Competition : Honda CR250R Kawasaki KX250 Suzuki RM250: Yamalube 10w-40: Manuals : 2005 Yamaha YZ250 Owners Service Manual. 11.

A 10w30 is not going to provide a better cold start than a 5w40. Brief content visible, double tap to read full content. Can I use 10W 40 instead of 5w30? Often 10W-30 or 10W-40, the same motor oil types that are used in vehicles, can also be used in a lawn mower. You can find 10W-40 auto oil with an API SG though. Jan 17, 2016. Since the VIs can be among the first components to oxidize off in hot (REALLY hot) operation, theoretically you could lose both volume and viscosity with the greater spread 10W-40 fluid. A 10w-40 motor oil is a thicker oil at startup than a 5w-30 motor oil. A 5W, like in SAE 5W-30, can be pumped at an even lower temperature, and a 0W, like in SAE 0W-30, will pump at the lowest tested temperatures. In the rest of the world Ford recommends 5W-30 in the Focus. Using a 10w-40 oil at UK it will be ok (because of the 10w) but probably a waste of money (you'll never have 40C! From the other thread the difference between a 100% 0W30 and 100% 0W40 oil is about 2% fuel economy, which you won't notice on a short run (about 0.5 mpg on a 25 mpg combined cycle). Jan 20, 2014. I haven't blown anything up yet.

Therefore, high quality additives are needed to compensate for those weaknesses in order for a 10W-30 engine oil to protect as well and last as long as a 15W-40. Do not use synthetic oil unless you have at least 30,000 miles or you can cause problems. Besides, is it okay to use 10w40 instead of 5w30? 10W40 can be used if your engine sound is high and your vibration is high. The engine gets warm in the summer. The higher the number, the thicker or viscous the oil is. 10w-30 vs 25w-40. If you use 10W40 oil during periods of a cold engine running, the molecules of this specific oil might be too big to enter between the metal parts of the engine for proper lubrication, hence leading to damage. You don't want to use 5w30 in a push mower, it'll just burn up, because it's so thin.

However, you probably shouldnt use 10W-30 only for the sole purpose of increasing your vehicles fuel efficiency. Older engines can use the SAE30, while the 10W30 is for modern engines.

While it might also be used during the summer and has very good resistance to high motor temperatures, this oil Below 40F and down to -10F, use 10W-30.

This is the reason your location is so important in selecting which oil to use. You should never use 10w40 instead of 5w30. Conventional 10W-30 engine oil formula that keeps engines clean and responsive ; No leading conventional oil provides better wear protection (Based on Sequence IVA wear test using SAE 5W-30). 10w-30 10w-40 10w-50 20w-40 20w-50 There is even a special blurb in the manual that states that if you live in the desert, or tow regularly, or high temperature areas, you should run a higher viscosity oil. Can we use 10W40 instead of 10W30 scooter? Older engines can use the SAE30, while the 10W30 is for modern engines. Should I use 10w 30 or 5w30? (it will flow the same as cold 10w oil).

Due to 0W-40 being thinner, it has a slightly higher efficiency in certain engines.

Therefore, a 10W-30 oil becomes a 20W-40 oil. (10W-30, for example) is important. Better In Cold Weather. This higher viscosity oil is designed for hotter temperatures and can handle the added heat stress from the environment. It wont make much of a difference if youre in a hotter climate area. But if you use 10w40 instead of 10w30 in a 10w30 engine, it will just increase friction and oil pressure. How long does 5W30 oil last? Your vehicle does not use 5W-30 oil. Heavy-Duty Applications. If you drive the vehicle in exceptionally cold weather, well below 32 degrees, you can use 5W-30 oil but even 10W-40 is still perfectly OK to use if outdoor temperatures are below freezing. May 10, 2015. A 10w-30 SAE oil at southern europe will not work because it will not be able to handle the 40C of summer. I have 177,000 on mine and it does burn about a quart or so every 3k. The oil cools and lubricates the engine. Using the wrong oil can lead to reduced lubrication and shorter engine life. SAE 30 is SAE 30 no matter what the "W" prefix number is: 0W, 5W or 10W.

Thicker or higher viscosity metal oil has a better seal compared to low viscosity oil. But unless you live in an extreme climate, the difference in protection should be negligible.

10W40 has a higher viscosity than 10W30. If you use 10w40 in place of 5w30, it wont perform as well as 5w30 in low temperatures. When the oil is cool, the 10w30 oil would be thicker and more viscous than the 5w30. Jump to When should I use 5w30 vs 10w30 That is why it will be best if you used 5w30 instead of the 10w30 if your vehicle operates in climates that are. Can I Use 10W-40 Instead Of 10W-30 Oil?

Can I use 10W 40 in my Craftsman lawn mower? According to them, certain brands of 10W-40 oil had polymers that would cause carbon build-up, so GM issued the warning and recommended not using any 10W-40 oil. 10W-30 engine oils can fit anywhere in the range of 9.30cST to 12.49cST. What will happen if you put 10W40 instead of 10W30? The thicker oil in an engine designed for 10W30 would cause friction in the engine and an increase in oil pump load.

Your vehicle does not use 5W-30 oil. Main Differences Between 5w20 and 10w30. This has caused problems in diesel engines, but fewer polymers are better for all engines. 10W-40 . On the contrary, 10w30 is slightly better suitable for colder temperatures. Should you be faced with that kind of "extreme" cold you can just let your car warm up for 30 to 60 seconds before you start rolling. I consider my driving style, combined with larger tires, 100+ degree days, A/C running constantly and off roaring at low speeds, etc. If you are looking for an economical solution, you might prefer 10W30.

Either it is a 5W30 or any other oil, you should go Replacing stock engine oil with ZIC 10w-40 semi synthetic helped me fairly. At operating temperatures, both oils will have the same viscosity (30) Use only what the owner's manual specifies. Yes, you can make use 10W30 engine oil instead of the SAE30 in your Lawn Mower. Texas is, no doubt, correct that this problem has been addressed and certainly 10W-40 oils have been improved over 30 years. Synthetic 5W-30 can be used in all temperatures. It is obvious from the basic fact that 40 is greater than 30. Only uses about 2 qt of oil between oil changes of around 22,000 - 23,000 miles / 450 hours (50% longer than OEM recommended oil change interval of 15000 mile / 300 hrs for the Series 60 pre-EGR). Obviously, a 10W-40 is thicker than a 10W-30 at high temperature. Dec 7, 2013.

See all 6 options. K20A is a sports JDM version made since 2001. Yep, thats surprising that they recommend 10w30. The engine oil will flow slower than 5w30 during the cold season.

You should choose synthetic 5W-30 oil that is of high quality.

Heavy-duty applications (like commercial vehicles) require an engine

J35Z3 (2007 2012) was an analogue to J35Z2, but without the VCM system. Efficiency Of Engine Higher performance engines may see higher loads in engine parts. It should be perfectly safe to use 10w 40 in place of straight 30 weight oil. Your vehicle does not use 5W-30 oil. If 10w40 is what youve got, ANY oil is better than no oil! 10w40 can operate under a working temperature as high as 104 degrees Fahrenheit, while 10w30 maximum working temperature is 85 degrees Fahrenheit. TeeJayy said: My problem is that when using 10-30 in the summer and the jeep gets up to temp, i dont have great oil pressure. T. Q. 10W-40 and 5W-30 require a lot of polymers (synthetics excluded) to achieve that range. <-- I really recommend this oil, especially if you live in a hot climate) The best conventional 10W-40 is 76 Lubricants Nascar HP.

In addition, the other number indicates the oils resilience to thinning at extreme temps. Use only what the owner's manual specifies. 10W40 can be used if your engine sound is high and your vibration is high. Click and Clack referenced the bulletin. If you are looking for high-quality oil that can withstand winter use, then this 10W-40 viscosity grade oil can do quite a good job. 10W-30 is a synthetic designed for W grades are measured at 40C.

Jan 17, 2016. Low oil viscosity and high engine loads will kill an engine quicker than using a 10W-whatever, everytime. We take the confusion out of the oil viscosities. The quick answer is 10W40 is a thicker engine oil than 10W30 at higher temperatures. Both have almost the same characteristics, and the only difference is the oil viscosity. Sadly, that quick answer doesnt make it any easier to understand.

Using thinner oil in those engines wont be a good idea. The recommended oil viscosity for your vehicle, according to Kia documentation, is 10W-40.