Originally Posted By: dnewton3
OK- I see where the "T" comes from. It's not the way I think of their line up, but it's my mistake. Again, I think it's silly the way they put the "T Triple Protection" in between the T5 and T3. They should have left the T3 designation for the Triple Protection and then made up some new moniker for the fleet oil. Or, call the Triple Protection "TP". But hey, it's not my company to run ...
In light of that, my comments stand as before.
The T3 is the fleet oil, and the T is the Triple Protection and is of a higher capability. I'm sure there is a formulation difference, or they would not point out the "better" capability of wear reduction of the "T" over the "T3" in their marketing info.
BJ's had a instant $3 manf. discount on the 3 pack case of Rotella Triple Protection ($32 per case), so I picked up a case, along with couple cases (6q/case) of their FSFS 5W-30 which had a $9 rebate per case, and it worked out to about $18 per case.
I have read other threads that Shell uses simillar base stocks for most of their products (or at least shares their base stocks across their product range). Was wondering if mixing the Rotella T 15W-40, with the FSFS 5W-30 at a 50/50% mixture, would equal something simillar to their T5 10W-30 synblend. Would that mixture be Ok to use in my 240D during winter months, or not because the FSFS is not designed for diesel engines.