Originally Posted by CJWeaver View Post
I'm running 75-90 dino gear lube in my T5, Dana 300, and front and rear diffs. Have been since the 30K mark which I hit in around 1993-94. I currently have around 81K on the ticker, and have no problems.
I was GOING to swap to Redline MT90 in the T5 ONLY because I thought it might make cold shifts a little easier. Leaving dino in everywhere else.
I think the Rotella is great oil, and don't think that 15w40 will hurt anything at all, but you better check the amount; 4.5 quarts isn't enough if you're running the 258.
85 CJ7 258, borla header, Team Rush, MC2100 ,optima batt, Warn 8274, agr super box 2 & pump, T5 w/ B&M shifter, centerforce 2, superior 1 piece axles, warn hubs 2.5 in lift, 31" BFG MT
85 CJ7 258, A/C, T176, MC2100, Team Rush, Warn XD8000i, superwinch hubs, 3in lift 31" BFG AT/KO