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- MEXICOWANDERERExplorerDiesel engine manufacturers are touchy about which oil makes their engines look best.
If you want THE BEST
http://www.lubricationengineers.com
I had disaster after disaster with Amzoil. Now it is not allowed within my eyesight. My toad uses Castrol 5W-30 and Quicksilver uses Delo 15W-40. - TrackrigExplorer III use synthetic in my diesel 3/4T truck because I put a lot of miles on it, push it hard, pull heavy loads and have to start it at times sitting out at -30F when I come back from snowmachine riding for several days.
I don't use synthetic engine oil in my DP with a C7 because I don't push it hard, I don't start it in cold weather (it spends the winters in AZ), it's never come close to overheating and I only put 4 - 7,000 miles on it a year.
Bill
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