Quite simply, it’s soot, which diesel engines produce in much higher levels than their gas-burning counterparts. The soot enters the oil pan from the combustion chamber due to the gap in the piston rings, and it takes very little soot to turn the oil the inky black diesel mechanics are all to familiar with.

5w30 provides best cold start properties. Using 15w40 instead of 5w30 will increase your fuel consumption because of more load on your engine’s crank. No it won’t blow off,you will just wear your engine out quicker because the oil won’t flow to the moving parts as quickly !

THE ANSWER IS NO! Even if two different brands of oil have the same viscosity, you still should not be mixing them together.

15w40 is typically used in diesel engines. 15w40 is typically used in diesel engines. Diesel engine formulated oil will have additives not required in gasoline engines …but that’s not necessarily bad.

Mobil 1

What makes diesel engines work so well and last so long? It’s normal for your car’s gasoline engine to run for around 200,000 miles before it needs a serious overhaul, or you need a new vehicle. But diesel engines can continuously run for an impressive 1,000,000-1,500,000 miles before needing any major work.

Since these engines combust at much higher compression ratio than gasoline engines, the oil used in the motor has to be able to withstand tremendous forces, usually of 40,000 to 50,000 psi. Most newer diesel engines will recommend 15W-40 because it is heavier and thicker.

A: Yes. This is a practical method to improve oil pressure in an older, high-mileage engine. The slightly thicker oil film from the heavier base weight oil – 10W – can help protect worn engine bearings as well.

If you use 10-w-40 instead of 5-w-30 specified by the manufacturer then the viscosity of 10-w-40 used by you will be higher and oil thicker than what is specified during winters. Similarly the oil viscosity will be higher and oil thicker than specified during summers.

10w30 is thicker then 5w30 because it has a higher viscosity in low temperatures. The engine oil will flow slower than 5w30 during the cold season. Thicker or higher viscosity metal oil has a better seal compared to low viscosity oil.

A: Yes. This is a practical method to improve oil pressure in an older, high-mileage engine. The slightly thicker oil film from the heavier base weight oil — 10W — can help protect worn engine bearings as well.

5W-30 oils are better in the cold atmosphere for good begin. 5W-30 as multi-grade oil is used vastly under extreme weather either it is the warm or cold state….0w-20 vs 5w-30 Table.

When you’re choosing the best oil for older cars or high mileage engines, there are several criteria you can look at.

• Pennzoil High Mileage Conventional Motor Oil.
• Castrol GTX Part-Synthetic High Mileage.
• Valvoline MaxLife High Mileage Synthetic Blend.
• Mobil1 High Mileage Engine Oil.
• Amsoil Premium Protection Motor Oil.

If you put in 5W-30 oil instead of 5W-20 when the latter is the grade suggested by your vehicle’s manufacturer, damage to internal engine parts can occur. Additionally, your engine may experience performance issues such as diminished fuel economy and horsepower.

Recommended Services Hello. Using 5W30 oil for your vehicle will not blow out the engine. However, your vehicle will not run as efficiently as it should and you may experience a loss of fuel economy.

Can I use 5w20 instead of 5w30 Toyota. If you are asking yourself this question, the answer is No, you cannot use 5w-20 for your Toyota. The recommended and best type of oil for all Toyota is 5w-30. The high viscosity it has can properly work effectively with Toyota engines.

you could switch. you wont gain fuel economy or hp…the 20 and 30 are just different viscosity ratings. just stick with whatever your engine/user manual says to use. There’s a TSB out that all 2AZ-FE engines should now be using 5w20.

Most often, these types of oils best cover the range of possible temperatures, with a 5W-20 oil more geared toward colder climates and a 5W-30 oil more appropriate for warmer temperature extremes. For the most part, either one should work just fine in a vehicle engine regardless of the prevailing temperatures.

Using the wrong oil can lead to reduced lubrication and shorter engine life. If the manual says to use synthetic oil, do so. Contrary to what some believe, adding synthetic oil to regular oil won’t harm the engine, but there’s also no benefit in doing so.

The key difference between 5W20 and 5W30 motor oil is that the former is thicker or less viscous. The more viscous motor oil is, the better it will be able to resist the heat and not break down. In this case, 5w30 oil will provide better overall engine protection than 5w20.

The oil will eventually dissipate compared to a 10w30. Conventional oil is known to burn off fairly easy compared to a full synthetic oil under hard driving conditions. I know from experience. There should be no issues at all running a 5w30 or a 10w30 oil in a 5w20 spec’d vehicle.

20,000 miles

Vehicles in which 0w-20 is an option to 5w-20 mineral oil, (or 5w-30), will continue to require 5,000-mile/6-month oil change intervals, even if 0w-20 oil is used.

Full synthetic oils will actually last well beyond 10,000 miles. The lifespan of synthetic oil depends, but it’s not crazy to see oils still working at 15,000 miles or longer. Synthetic technology is pretty amazing, but it isn’t magical.

0W-20 OIL. It readily means that the 0 oil will flow well and better at a cold temperature more than 5W-30 oils even while maintaining the same viscosity. The 0W-20 is said to be the best oil in the market because it helps to reduce environment hassle on waste oil disposal.