What does SJ mean on engine oil?

What does SJ mean on engine oil?

Gasoline Engines

"S"	Status
SM	Introduced on 30 November 2004
SL	2001 Gasoline Engine Service
SJ	1997 Gasoline Engine Service
SH	Obsolete

What is SJ or later oil?

This oil is intended for all gasoline engines currently in use and has been the standard since 2004. ... And category SJ protects all gasoline engines from 2001 (and earlier), so everything below the grade of SJ is considered obsolete.

What is the difference between SN and SJ oil?

As explained earlier, the higher the letter, the more recent and a higher specification would supersede the lower ones. API SN to SJ are for the most recent cars, API SH to SA for the older cars. ... In this case, you need API SL, so an API SJ, lower, cannot be good. SM and SN supersedes SL so both oils can be used.

What is SAE 30 SJ oil?

Havoline Motor Oil SAE 30 staight weight is a premium automotive motor oil with Deposit Shield® Technology protects against deposit and sludge formation and provides excellent wear protection of critical engine parts.

Can I use SJ oil instead of SF?

API SJ oils can be used in any applications where SH oils were being appropriately used. So if your owner's manual calls for an API SE, SF, SG or SH motor oil - API SJ will work just fine.

What does 10W 30 SJ mean?

This means the viscosity is at 10W when the engine is cold and 30 when the engine is hot. Low viscosities are good for cold temperatures (hence the “W” association) because the oil is thinner. Thinner motor oil flows more easily and moves quickly.

Can you mix synthetic oil with regular oil?

Mixing them will not improve the performance or efficiency of your engine in any way. ... Adding synthetic oil to regular motor oil will not enhance the regular oil. Mixing regular motor oil with synthetic oil may dilute the benefits of the costlier synthetic oil.

Is 15w40 good for diesel engines?

ADVANTAGE 15W-40 HEAVY DUTY DIESEL ENGINE OIL can be used with complete success in over-the-road diesel trucks, off-highway diesel equipment, farm tractors, and passenger cars and light trucks with diesel, turbo-charged diesel engines, or gasoline engines and is backward compatible with previous API Oil Categories.

Can I use API SP instead of SJ?

API SP will be fully backward-compatible with previous API service categories, including API SN PLUS, SN, SM, SL or SJ.

Is 10w30 the same as SAE 30?

SAE 10w30 oil has 10w thickness at low temperatures, but SAE 30 is at high temperatures. ... In the straight SAE, 30 doesn't and can have immense Viscosity and helpless pumpability at low temperatures. As SAE 10w30 is not thick in low temperature, while SAE 30 is in high temperature.