What oil do you use in your MC?

[csherbo]

^^^ This is correct - I use Mobile 1 - 5W30 full synthetic

Here is where you can get an electronic copy of the Ilmor Manuals
http://www.ilmor.com/en/marine/recre...l/MV8-62L.aspx

^^^^X2

[Roman]

Rotella T-6. I have read nothing but good things about it on BITOG so I use it in my small 4-stroke engines, my chevy 1500 in the summer, and in the boat.

[Indyxc]

Valvoline premium blue 15w40. It was rated as the best non synthetic oil and one of the best overall in a diesel oil study.

http://www.turbodieselregister.com/TDR57_Oil.pdf

Price API Performance Category
$/gal. Oil # Brand/Description My Estimate Actual
Best
9.98 1 Cummins/Valvoline Premium Blue 15W40 CI-4 plus CI-4 plus
17.36 8 Shell Rotella T Synthetic 5W40 CI-4 plus CI-4 plus
21.89 12 Cummins/Valvoline Premium Blue Syn. 5W40 CI-4 plus CI-4 plus
9.98 13 Pennzoil Long Life 15W40 CI-4 plus CI-4 plus
10.88 14 Chevron Delo 400 15W40 CI-4 plus CI-4 plus
35.00 20 Red Line Diesel Synthetic 15W40 CI-4 plus CI-4
Good
10.36 2 NAPA Universal Fleet Plus 15W40 CI-4 CI-4
25.70 10 Amsoil 5W40 CI-4 CI-4 plus
13.51 15 Caterpillar DEO 15W40 CI-4 CI-4 plus
12.68 16 John Deere Plus-50 15W40 CI-4 CI-4
19.99 18 Lucas 15/40 Magnum 15W40 CI-4 CI-4
Satisfactory
9.68 3 Mobil Delvac 1300 Super 15W40 CI-4 plus CI-4 plus
7.68 5 Wal Mart Super Tech Universal 15W40 CI-4 CI-4
9.52 6 Castrol GTX Diesel 15W40 CI-4 CI-4
9.52 7 Motorcraft Super Duty 15W40 CI-4 plus CI-4 plus
9.99 19 Pilot Premium HD 15W40 CI-4 CI-4
12.00 21 LiquiMoly Diesel Special 15W40 CI-4 CF-4
Ho-Hum (least favorite)
10.96 4 Shell Rotella T Triple Protection 15W40 CJ-4 CJ-4
27.55 9 Amsoil Premium Synthetic 5W40 CJ-4 CJ-4
10.80 11 Castrol Tection 15W40 CJ-4 CJ-4
12.99 17 Chevron Delo 400 LE 15W40 CJ-4 CJ-4

[sp00ky]

Rotella in the Boat, Mobil 1 in the cars.

Exactly what I do. Can't go wrong there.

[mts205]

Used mobil one 15w50 full synthetic yesterday, jug says it has extra zinc for "high performance engines" plus it was 13$ for a 5 qt jug at walmart, I'm still happy about that deal!