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Using Synthetic oil in 496 Mag

C

camaco

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Are there any problems associa

Are there any problems associated with using synthetic oil in a Mercruiser 496 Mag engine?
 
Just make sure it is at least

Just make sure it is at least a 15W40 wt. I use 15W50 in a 4.3L. Merc. makes a 25W40; use it.
 
"Napa sells full sythetic Valv

"Napa sells full sythetic Valvoline in a NAPA bottle, 20w-50w last time I bought it it was only $2.49 a quart!! good price for full synthetic."
 
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