alltherage
Silver Member
- Joined
- Nov 15, 2011
- Messages
- 158
- Location
- Western NY
- Tractor
- 2011 Cub Yanmar EX2900. 1939 Farmall A, 1940 Farmall H, 1959 Oliver 770
I just did the 50hr service on our tractor and put in Rotella T5 semi synthetic 10w-30. I really wanted to use T6 5w-40 full synthetic but the manual calls for 10w-30 or 10w-40 and it's still under warranty. Anyway, I looked at the manual again and it calls for "CF or Higher" oil. T5 doesn't list CF, CF-2or CF-4 on the label. It lists everything above those ... CG-4, CH-4, CI-4, and CJ-4.
I did some digging last night, and according to the API Oil Guide, CF and CF-2 are still current and designed for non-turbo engines with higher sulfur such as in off-road applications. CF-4 is obsolete. It lists CJ-4 as superseding CF-4, but not CF or CF-2. The CJ-4 rating is more for new turbo low sulpur applications on-highway.
Does this mean that i shouldn't use T5, or T6 for that matter? I know the plain ol' T triple protection 15w-40 is CJ-4 AND CF rated. What is technically "higher" from CF? CF-4? or anything? If CF-4 qualifies, then CJ-4 is an adequate substitute. Am I stressing for nothing? I just put it in a couple days ago and will change if need be. Thanks!
I did some digging last night, and according to the API Oil Guide, CF and CF-2 are still current and designed for non-turbo engines with higher sulfur such as in off-road applications. CF-4 is obsolete. It lists CJ-4 as superseding CF-4, but not CF or CF-2. The CJ-4 rating is more for new turbo low sulpur applications on-highway.
Does this mean that i shouldn't use T5, or T6 for that matter? I know the plain ol' T triple protection 15w-40 is CJ-4 AND CF rated. What is technically "higher" from CF? CF-4? or anything? If CF-4 qualifies, then CJ-4 is an adequate substitute. Am I stressing for nothing? I just put it in a couple days ago and will change if need be. Thanks!