![]() ![]() One poster said it sounded like my problem was due to the fluid thinning as the transmission heated up. ![]() I was curious if anyone knew or had good experience with the Lubegard Flush. In the near future I will do a pan drop, filter change, and complete flush with Mercon V. Valvoline says it is suitable to use, but, I am inclined to agree with those who say I should use only Mercon V. I have MaxLife Dex/Merc in it now, and was chastised for using it instead of Mercon V. After getting hot, the engine will (sometimes) tac up to about 2000 RPM's before shifting into 2nd gear, and there is a bumping when moving in reverse from a dead stop. On another thread I told about this transmission (2004 Mercury Sable DOHC). For next, ATF change, I will be buying Motorcraft Mercon V at the dealer to see if this was an ATF issue. I added a bottle of Lubegard Platinum ATF protectant, and it appears to have fixed the problem. It's hard to say whether this was due to a problem with the transmission or perhaps due to a strange mix of different brand ATFs that I dumped all into the transmission. My car did develop shudders when driven hard. By the way, my intention was to use Seaform for 15-30 miles before the flush, but then an emergency happened and I didn't have the time to change the ATF fluid until two weeks later.Īlso, I would not add the Lubegard ATF protectant, unless there is already a problem. What I think it did was dissolve the deposits near or at the seal that was already worn out, creating this leak. These leaky seals are a well known problem, so I don't think the Seafoam damaged anything. After running Seafoam Transtune (a less aggressive ATF cleaning/flush product) for about 300 miles before the fluid change, my Taurus developed a leak at the driveaxle seal. ![]()
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