What oil is best for engine break in????

[70 Forest Green Zee]

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You can't go wrong with the Gibbs oil but it is a bit pricey .Shell Rotella T oil has the ZDDP for now but that will change also .

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Shell has already taken a good portion of the ZDDP out of Rotella starting at the beginning of 2008 when new diesel engine vehicles were required to have a catalytic converter. Shell claims that the new Rotella still has some ZDDP in it but not near as much as the old formulation. The old formula Rotella had an API rating of "CI" and that is the version of Rotella that has the high level of ZDDP...the new formula has an API rating of "CJ" and that formula of the oil is the one that has the reduced levels of ZDDP. Anyone who is thinking of using the new Rotella be aware that the ZDDP level is not near as high as the ZDDP level was prior to 2008.

[L78steve]

Thank you for that info Forest Green .I did not realise it has already changed .I guess we will have to rely on additives like GM EOS or go with the specialty oils .

[JoeG]

How's this Penn Grade High Performance Oil----"The Green Oil"---It states it has the Zinc additive for classic cars or racing engines.....? Anybody using this...?

[Salvatore]

I use the old Kendall green oil all the time Joe! Good stuff! I have it mixed to 15W/40.

[JoeG]

Sounds good Sam............Thanks

[HPMIKE]

I will use the Gibbs or Brad Penn oils. I also have been heavily using the VR1 Valvoline Race oil. It has all the additives needed and has never let me down. I also use a bottle of the Comp Cams break in lube. If it is an agressive profile with a lot of spring I will recommend using a bottle with every oil change.

MB

[Salvatore]

VR1 racing is real good too!