Single grade oils change viscosity with temp far more than do multi grade oils. So, 10w50 is thinner (than 15w40) when cold and thicker when hot, which is good for a faster pump around when cold, and less oil consumption when hot (less oil passing by the rings and down the valve guides).

Is 10w50 better than 15W40?

Single grade oils change viscosity with temp far more than do multi grade oils. So, 10w50 is thinner (than 15w40) when cold and thicker when hot, which is good for a faster pump around when cold, and less oil consumption when hot (less oil passing by the rings and down the valve guides).

Is 15w50 better than 15W40?

The answer is no. 15w-50 is a more suitable engine oil for your Royal Enfield than 15w-40. As 15w-50 is the recommended viscosity grade for the Twin Spark engines that are used in their models. Both have the same viscosity but 15w-50 is more resistant to higher temperatures than 15w-40.

Can I mix 10w50 with 15w50?

There is absolutely no harm in mixing different grades of engine oil! All motor oils are required to comply with international standards which include a compatibility test. This means that any branded engine oil will mix with the standard test oil in any proportions and the mixture will still perform as specified.

What is 15w-50 motor oil used for?

15W-50 has historically been a viscosity recommended for high performance engines, and is used today primarily in motorsports racing where engines are stressed due to high revving and heat.

What’s the difference between 20w50 and 15W40?

20W-50 motor oil is for vehicles with gasoline engines. 15W-40 oil is for diesel applications. The difference between the two grades are just the specifications and for all practical purposes, in older vehicles without variable valve timing, the two grades of oil are interchangeable.

Is 15W50 good for diesel engine?

Mobil 1 15W-50 is recommended for all types of vehicles, suitable for use in high-performance turbo-charged, supercharged gasoline and diesel multi-valve fuel injected engines found in passenger cars, light vans and trucks.

Can I mix 15W40 with 15W50?

Can you mix 10w50 with 20w50?

You’re usually better off going with the oil where the two numbers are closer together. The larger the gap between the two numbers means more polymer has to be used to bridge that gap. Polymer is an evil necessity in multi-grade oils, so if you can choose a 20w50 over the 10w50……

Can I mix 15w40 with 15w50?

What is 10W50?

10W50 oil is a high-performance engine oil that offers outstanding engine reliability and temperature stability under extreme driving conditions. It’s used for a wide range of motorsports and modern engines with turbochargers.

Is 15W50 thicker than 10w40?

This is because the 15W -50 oil is thicker at low temperatures than the 10W-40 so, it will not flow well at startups. However, it is best at high temperatures because it is thicker and therefore maintains its viscosity even when temperatures rise.

Which engine oil is better 5w50 or 20w50?

Hence a 5w50 engine oil would be better than a 20w50 engine oil here. Let’s turn our attention to the second letter ‘y’. Consider an example when you have been riding for an hour continuously on your bike in scorching summer at stop and go city traffic.

What is the difference between 10W-30 and 10W40?

The difference between 10W-30 and a 10W-40 is the high temperature viscosity. Obviously, a 10W-40 is thicker than a 10W-30 at high temperature. Armed with knowledge of viscosity grades, how can we put it to good use? Remember that using oil with a viscosity that is too high can result in excessive oil temperature and increased drag.

Can I use XW30 instead of xw40?

You should not use any engine oil with a lower ‘y’ rating. If your manufacturer recommends engine oil of grade xW40, you should not use any oil below 40. An oil of xW30 would be ineffective in providing proper lubrication to your engine at higher temperatures.

Can I use any engine oil instead of 20 watt?

So, if your manufacturer advises you a 20Wy, you can use other figures as well as far as they are lower than 20. We generally prefer and suggest Motul Engine Oils over other oils available in the market as we have had good experiences with them.