quote:Actually they list their pour point as -33c, which is -27F. Their cold cranking specs are very vague too, it just says less than 6600 for each of their oils at the corresponding temperature that they qualify under.
Originally posted by Drew99GT: What are you guys talking about as fas as castrol and cold weather? I found a data sheet showing a pour point of GTX 10w-30 SJ as -33 F. Which was as good or better than all the other major brands.
quote:No connection. ChevronTexaco, headquartered in the San Francisco area, is one of the world's oil giants. Citgo is owned by Petroleos de Venezuela and only has regional distribution in the U. S. Ken
Originally posted by dagmando: .... Is Chevron the same as Citgo? My Jeep dealer uses Citgo 10w-30 on all their oil changes.
quote:Castrol does tend to put a caramel color to the engine but it does not sludge it. Pennzoil and Quaker State oil tend's to sludge up engines.
Originally posted by JonS: I found that Castrol tended to varnish/sludge up engines. I have talked with people who have used it and this is what they have said. I have used it and noticed it does not clean well. Also, the pour point is -27f (not good)