Winter oil.. Brrr.
#21
#22
Just came upon this thread.
I would strongly recommend this site:Used Oil Analysis - Bob is the Oil Guy - Bob is the Oil Guy to anyone who wants the whole story on engine oil. It was an eye opener for me. Most engine wear occurs soon after startup. You want the lowest viscosity oil at that critical time. For that reason I use 0-30 all year round.
I would strongly recommend this site:Used Oil Analysis - Bob is the Oil Guy - Bob is the Oil Guy to anyone who wants the whole story on engine oil. It was an eye opener for me. Most engine wear occurs soon after startup. You want the lowest viscosity oil at that critical time. For that reason I use 0-30 all year round.
#23
#24
#25
You missed an important bit about ZDDP, which 0W-30 does not contain. And the only oil in that grade I have ever seen is Mobil1 which us usually quite expensive. If you're going to pay more might as well go with Shell T6 since it is a year-round solution that flows well in Winter and provides viscosity in Summer.
#26
You missed an important bit about ZDDP, which 0W-30 does not contain. And the only oil in that grade I have ever seen is Mobil1 which us usually quite expensive. If you're going to pay more might as well go with Shell T6 since it is a year-round solution that flows well in Winter and provides viscosity in Summer.
#27
#28
I am running 15w40 year round here in NJ. It has been my experience that it definitely leaks less than lighter oils. The truck does not complain.
~Edit~
The truck complains no matter what oil I run in her. Same tick tick tick sound regardless of lubricant type. Rotella is cheap and anything that keeps less oil in my driveway is a good thing. The amount of rainbow water in front of my house when it rains is a bit embarrassing.
~Edit~
The truck complains no matter what oil I run in her. Same tick tick tick sound regardless of lubricant type. Rotella is cheap and anything that keeps less oil in my driveway is a good thing. The amount of rainbow water in front of my house when it rains is a bit embarrassing.
Last edited by CheeeseSteak; 03-06-2015 at 05:41 AM.
#29
I'd run Rotella T6 all year around almost anywhere. Why change back and forth between oil weights? Especially in NJ since 10w40 will only get you down to 18degF and with the winer you guys have had or if you venture north, you need the 5w40. If the 5w40 leaks then fix your oil leak. My 04 is in the shop getting a new rear main seal and oil pan gasket.
#30
My truck sounded much worse and ran rougher when I ran Rotella 15w-40. I didn't make it to 3000 miles before I dumped it. When I replaced it with M1 Turbo Diesel Truck 5w-40, it was so smooth it sounded like I had put butter in my engine.
That was my final experiment with non-synthetic oil.
That was my final experiment with non-synthetic oil.
Last edited by dr. mordo; 03-06-2015 at 07:58 AM.