Duke there is a good article in Light & Medium Truck magazine about new CJ4 oils, check it out & give a yell what you think about using it
Duke "Mr. Oil"...
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...stock up on CI-4?
I've read a couple of other articles on the upcoming CJ-4 standard, and it's not clear to me if it represents an upgrade or downgrade relative to the needs of our vintage engines. This article indicates less controversy, so maybe the issues are nearly resolved.
Right now, CI-4 is the best available formulaton for vintage engines. CJ-4 will have a better base stock, but the limitation on some additives may be cause for concern.
In any event, the API C-standard oils are better for vintage engines than current S-standard oils and will probably continue to be so.
Costco sells 15W-40 Chevron Delo is six-gallon cases, so I may stock up this year while CI-4 is still around.
Duke- Top
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Re: ...stock up on CI-4?
I'd say about a year is right and maybe CI-4 will be around longer due to all the older diesels that will probably be around a long time too.
AFAIK the shelf life of fresh motor oil is indefinite.
Duke- Top
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