Engine Oil For 1985 454
Posted 10 March 2012 - 08:00 PM
Start by looking in the owners manual/consulting Chevy for the oil viscosity they recommend for that engine for the ambient temperatures you will be experiencing.
Dianne and Brett Wolfe
1997 Safari Sahara 3540
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Posted 10 March 2012 - 08:20 PM
Posted 10 March 2012 - 11:42 PM
I just sold my 86 Mallard with a 454. Mfg called for 10/30 oil. I used synthetic blend from Firestone. It is Kendall.
I use that oil in the last 4 vehicles with no problem.
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