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[GMCnet] engine oil [message #301440] Thu, 02 June 2016 16:46 Go to previous message
james Ernst is currently offline  james Ernst   United States
Messages: 79
Registered: December 2013
Location: Lincoln, NE
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Hello gang,
I know this has been discussed ad nauseum but while at Walmart last night
looking at engine oil I have a couple questions.
I picked up a gallon of Rotella T straight 30 for the Onan.

Then for the the coach I ran across Mobil 1 10-30 High mileage 5qt jug $22.
It has the extra wear and heat protection additives.

Also, Valvoline new 15-40 HD diesel now with 25% less wear based on cam
lobe wear. Apparently updated anti wear pkg. It is a semi synthetic.
14.95/gal.

I had been using Rotella T 15-40.

I know some of you use the Rotella semi synthetic and full synthetic too.

I was just thinking it's time to move to synthetic blend or full.

Any thoughts on both the oils for the Onan and 455 would be appreciated.

Thanks,
Jim Ernst
Columbus, NE
77 PB
77Kingsley
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