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Re: Engine oil
Posted: Wed May 04, 2016 12:58 pm
by nascarjonb
I went to Wall-Mart last night and I found that Rotella is cheap, around 13 bucks a gallon. I went ahead and picked some up in SAE 30 (which is what the PO recommended but he used wolfshead SAE 30) ... what im trying to figure out is what grade of oil do some of you rotella guys use in the Chrysler 360's?
Re: Engine oil
Posted: Thu May 05, 2016 5:59 am
by Fastjeff
I used the 15 W 40 (as I recall). I'd avoid that straight 30 weight oil--it'll murder the oil pump gearing on cold start up.
Jeff
Re: Engine oil
Posted: Fri May 06, 2016 8:38 am
by Trowerpower
Chrysler Marine Engines have flat tappets and they need zinc in the oil to lubricate them properly. This is a fact! Check out
http://www.hughesengines.com for an article about this. There are a number of oils on the market that have it. Brad Penn, Joe Gibbs Racing Oils, Royal Purple are a few.
Re: Engine oil
Posted: Fri May 06, 2016 9:31 pm
by Rockit
Or a zinc supplement--no? My buddies in the antique car world use them. There are several to choose from in the parts store---OOPS for the crankcase not you!
Re: Engine oil
Posted: Sat May 07, 2016 4:26 pm
by Fastjeff
Lucas ZDDP additive is a really good product. AutoZone and other places sell it. Use half a bottle per engine.
Jeff