What is the difference between 10w40 and 15W40?
A 10W40 oil will be thicker in the cold than 15W40 oil, but they will have the same viscosities at higher temperatures. The winter viscosity number dictates cold-start performance. A lower number indicates that the cold oil will be thinner, hence applying less static friction on the engine, and less drag.
What happens if you put diesel oil in a 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.
Can I use diesel oil in my car?
Motorists may favor diesel motor oils over their gasoline counterparts for a few different reasons. It is safe to use a diesel oil in your gasoline engine, provided the diesel oil meets the appropriate specifications and viscosity requirements of your engine.
Is there a difference between diesel oil and regular oil?
Emissions and the Catalytic Converter Therein lies the first major difference between the oils. Diesel engine oils have a higher anti-wear (AW) load in the form of zinc dialkyldithiophosphate (ZDDP). This is one of the main reasons you don’t want to use a diesel engine oil in your gasoline engine.
Why is oil Black in a diesel?
Why is my Diesel Oil Black? So when your mechanic changes the oil in your car, the golden amber liquid is quickly darkened by the residual oil and carbon build-up in the engine. That change in colour is a sign that the oil is actually doing its job.
Should I flush my diesel engine?
Diesel engine manufacturers will advise that they recommend against an engine flush for vehicles that have had regular oil changes. Regular oil changes will remove most of the oil deposits that could become problems over time. But many vehicles don’t have their oil changed at the intervals recommended.
How often should I change diesel oil?
Complete oil and filter changes should be carried out at the 7,500 mile mark. Most car engines as well as diesel engines carry recommendations of an oil change every 7,500 miles or at least every year.