And one more question!

[RobWest]

My fellow oil heads, the bottles of Chevron I bought had Iso Syn on the front. What does this mean??

 

[Tones]

quote:

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Chevron Supreme Motor Oils SAE 5W-20, 5W-30, 10W-30, 10W-40, and 20W-50 are formulated with ISOSYN ® base stocks, a shear-stable viscosity index improver, and contain detergent, dispersant, wear control, antioxidant, corrosion inhibitor, and foam suppressant additives.

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Quote taken from this data sheet. It is describing the base stocks. Probably means it has some Group III blended in.

 

[RobWest]

REALLY?? Group III blended in and its $1.14 a quart regular price? That has GOT to be the deal of the century!

 

[Steve S]

Not group III try group II .

 

[Robbie Alexander]

quote:

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Originally posted by RobWest: My fellow oil heads, the bottles of Chevron I bought had Iso Syn on the front. What does this mean??

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The name of the process they use.

 

[RobWest]

I knew from the Chevron site that it was based on group II, but I was wondering what IsoSyn was. Maybe an additive package or a dose of group III mixed in?

 

[sbc350gearhead]

Isosyn is chevron's name for the GII base they use. It is merely a marketing term..........just like pennzoil's "purebase".

 

[Tones]

Yep, you're right. A quick search shows that this topic has been discussed many times and the conclusion was that it was a Group II+ oil. See this thread for example.