Originally Posted by gatsby46
Grigg, when you say straight 30 weight, do you mean SAE 30?
Yep, that's the stuff.

I'd be hesitant to try synthetic because I've had a very difficult time finding it in a straight weight, all of it seems to be a multi weight (like 10W30 for example).
There is probably some you could use, but I don't have any recommendations or knowledge on the subject.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-