ILSAC GF-6 vs SP

[Snagglefoot]

I came across this brief description which is outlined in red from a Kendall website that said the SP rating was for heavier grades such as 0w40. But on a bottle of 5w30 there was a SP rating. I take it the “ brief description” was somewhat inaccurate. Thoughts?

 

[BMWTurboDzl]

Kendall is obviously wrong.

 

[tasch72]

Kendall is wrong.

 

[wareze]

Its better to just go to API website

 

[OilyOrangutan]

Well technically they aren't wrong perhaps. That's API SP RC in the picture. They aren't talking about API SP RC in the Kendall shot. So perhaps they are right on a very anal technicality ? lol

 

[UG_Passat]

https://www.api.org/-/media/files/certification/engine-oil-diesel/publications/api%201509-%2021st%20edition.pdf

 

[ATex7239]

API SP vs API SP Resource Conserving

You aren’t conserving anything with 20W50. The eggheads tripped you up on a technicality.

 

[DirectRejection]

Apologize to Car Care Nut.

 

[Snagglefoot]

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https://www.api.org/-/media/files/certification/engine-oil-diesel/publications/api%201509-%2021st%20edition.pdf

Thanks for the API post. I organized the info on Phosphorus. I recall now that there was an article that said voting members on the API committee at first wanted to impose a 800 ppm limit on the 40 grades but in the first vote there were several dissenters so in a subsequent vote they decided a limit is not required ( NR).

 

[ZeeOSix]

Two different ratings ... GF-6 is ILSAC, and SP is API. An oil can meet both ratings.

 

[Snagglefoot]

Here is some additional info on the relationship between ILSAC and API ratings.

 

[Malo83]

So many Petroleum Engineers.