MoparDan
Well-Known Member
Thank you for the link, I found it interesting. I have run T4 in my 99 Cummins since new.You guys are starting to worry me. What's wrong with Rotella T5 10W30 and a bottle of ZDDP Plus?
P.S.
Found this pretty interesting.
Shell Rotella T4 vs T5 vs T6 (Dec Updated)
In the engine oil business, Shell has been a pioneer and one of the superior and successful manufacturers. Their engine oils are produced using the mostcomparemotoroils.com