Same, I've actually stock piled enough TDT for my next 4 oil changes, they always seem to run out whenever I need to do an oil change that day. I go for Castrol Syntec 5W-40 European Formula when I can find TDT though, Shell synthetic didn't do well in a review of oils I saw.MI-Roger said:Mobil 1 5W/40 Turbo Diesel Truck and SUV year round. If I can't find that, I use Rotella T synthetic, also in the 5W/40 weight.
Yes, they are both marketed as diesel truck oils.
Is that good or bad?? If the oil comes out cleaner, could it be leaving something (that ends up turning to sludge) behind?gto47 said:Penzoil Full Synth 5w30. Comes out a bit cleaner than mobil one . . . Switched to it after my shop suggested it and am very satisfied.
Careful with the 30 weights. The original oil pumps haven't been shown to hold spec pressure with 30 weight.gto47 said:Penzoil Full Synth 5w30. Comes out a bit cleaner than mobil one and is cheaper by a few dollars. Switched to it after my shop suggested it and am very satisfied.