tranny fluid
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Redline MTL in my six speed and transfer case. Redline Heavy Shockproof 75-140 in the rear axle. Front axle still has the factory fill. It's hardly ever used and just along for the ride so the oil is still fresh there.
Elder User
Joined: Mar 2004
Posts: 509
Likes: 1
From: Pasco, WA
Both Mobil 1 Synthetic & Pennzoil Dextron III/Mercon. I've been running the cheap stuff until I get the temperature problems sorted out (trans temp sensor placement), then I'll switch back to synthetic.
Elder User
Joined: Feb 2000
Posts: 737
Likes: 0
From: LAKE FORK TEXAS
I just got 20 qts of Mobil 1 Synthetic, Havent had a chance to make the change yet. If ya go that route be prepared for about $ 110.00 for 20 qts.!!
I tow everyday, it gets hot in Texas and the Synthetic handles the heat much better, so they say. Need all the help I can get with the high failure rates of the 4R100.
I tow everyday, it gets hot in Texas and the Synthetic handles the heat much better, so they say. Need all the help I can get with the high failure rates of the 4R100.
Elder User
Joined: Mar 2004
Posts: 509
Likes: 1
From: Pasco, WA
Got 3 left over from the last time I used Mobil 1 so I only need to buy 12 more to give me the 15qts I use for each change (truck takes 15.6, but I save the extra space for 1-1/2 bottles of red Lubeguard).
