Dodge/Ram Diesel Tech Discussions on all generations of Cummins Diesel powered Rams plus the new Eco Diesel

synthetic oils

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Old 12-06-2007, 02:59 PM
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Default RE: synthetic oils

ORIGINAL: rootercycles

do I need to wait until 40,000 miles until I switch to synthetic? My ride sits a lot and I wanted to switch to synthetic for both protection and reduced friction on startup after sitting for a long time.
I used Rotella synthethic 5w40 at 10,000 miles and Amsoil 5w30 HDD at 13,000. So I see no reason why you have to wait for 40,000 before using synthetic oil. I will say I broke in my engine with some weight in the bed and 2, 33+ hr non stop drives not counting fuel stops during the first 6,000 miles.

 



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