Is petrol engine oil the same as diesel engine oil?

Because diesel fuel is sometimes called diesel oil, be aware that the oil you have to change is not the fuel oil but the oil that lubricates the engine. This job requires lubricating oil that’s specially designed for diesel engines — not gasoline engines.

Is engine oil different for diesel and petrol?

Engine oils are a blend of two components – base oils and additives. … Typically off-road diesel engines use a mineral oil. Semi-synthetic and synthetic oils are used in petrol engines, such as those in cars, where longer service intervals and higher operating conditions require more refined oil.

Can I use diesel engine oil in petrol engine?

The answer is a tenative yes. Many motor oils carry ratings for both diesel and petrol engines. … Most diesel engine oils carry a higher specification rating than petrol engine oils and vehicle manufacturers often specify a diesel engine oil be used in a petrol motor.

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Which oil can be used with petrol or diesel?

Vegetable oil can be used as an alternative fuel in diesel engines and in heating oil burners. When vegetable oil is used directly as a fuel, in either modified or unmodified equipment, it is referred to as straight vegetable oil (SVO) or pure plant oil (PPO).

Can I put 5w40 instead of 5W30?

Can you put 5W 40 oil in a 5W30 engine? Yes, but its always better to use manufacturer recommended oil grade. A manufacturer can deny warranty claimes because of wrong grade oil. The 5w40 is slightly thicker at operating temperature but pretty much the same thickness when cold.

Can I put 10w40 instead of 5W30?

The recommended oil viscosity for your vehicle, according to Kia documentation, is 10W-40. 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.

Is 10w40 oil for petrol or diesel?

Total Quartz 7000 10W-40

A very high performance semi-synthetic oil, specially developed for petrol & diesel engines.

Can I use 15W40 oil in my petrol car?

Shell Helix HX5 is a conventional (mineral) oil with viscosity 15W40 meant for gasoline and diesel engines. So 15W40 CAN be a choice of oil for a gasoline engine if the manufacturer recommends or allows it.

What happens if you put diesel oil in a regular car?

Diesel oils have to put up with much higher engine temperatures, higher oxidation rates, sulfur deposits, fuel soot, acids and other deposits and conditions not usually found in automobile engines. … It’s because diesel oils fail in one critical area when used in gasoline engines.

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What is the best oil for turbo diesel engines?

  • Mag 1 Full Synthetic 5W-30 Motor Oil. MAG 1® Full Synthetic 5W-30 is one of the purest and most advanced motor oil products currently available. …
  • Mobil Super 5W-30 Synthetic Motor Oil. …
  • Royal Purple Synthetic Motor Oil. …
  • Castrol EDGE Extended Performance 5W-30. …
  • Valvoline SynPower 5W-20 Full Synthetic Motor Oil.


What is the best oil for car engine?

Our Top Picks for Motor Oil

  • Best Oil for Most Cars: Mobil 1 Synthetic Motor Oil.
  • Best Synthetic Oil on a Budget: AmazonBasics Full Synthetic Motor Oil.
  • Best High-Mileage Oil: Valvoline High Mileage Max Life.
  • Best Conventional Oil: Valvoline Daily Protection.


Is 5w30 oil for petrol or diesel?

5w30 is a motor oil that is widely used in light-duty petrol and diesel engines.

Which oil is thicker 5w30 or 5w40?


The working viscosity of 5w30 is basically from 9.3 to 12.5mm2/s whereas the operating viscosity of 5w40 is 12.5 to 16.3mm2/s. That means 5w40 has larger viscosity than 5w30. So, 5w30 is better than 5w40.

Why is 5w30 more expensive than 5w40?

5w40 oil is not thicker has it has a higher viscosity. 5w30 has lower viscosity hence it is suitable to use in hot or lower temperatures. 5w40 has higher viscosity hence it is not suitable at all temperatures. … 5w30 is an expensive engine oil as compared to 5w40.

Will 5w40 hurt a 5w20 engine?

It won’t harm your engine. In Europe they recommend anything between 0W-20 and 20W-50 for engines that strictly call for 0W-20 in US. You will see most benefits from 5W-40 if you drive hard or do towing.

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