![]() ![]() What do the experts recommend?įor a basic transmission fluid change you can expect to spend about $100 for both manual and automatic transmissions.Īccording to several reports, auto experts seem believe that replacing your filter as well as cleaning your pan each time is ideal once your mechanic changes your fluid.Ĭontaminants collect in the filter as well as the pan over time. Lots of auto professionals recommend getting a transmission fluid change every 30,000 miles. Spend the $1xx now before you end up spending $1xxx 's a low cost fix.Although a fluid change will not completely replace old fluid with new fluid, many mechanics recommend this service. Thereby having absolutely no idea whether the FM is dialed in right or not. Now, we all know for a fact - and I checked on mine to confirm it - that what the shop does is flush the system, and dump in a whole bottle of the FM additive. ![]() I asked him, Then how does the shop know how much to add, do you give them guidelines to get to the exact FM of Mercon V from Mercon? He says they have general guiidelines, but the shops themselves need to determine how much to add to get the Mercon dialed in right to Mercon V specs. The additive guy himself told me that as long as the shop used the correct amount of additive, that everything would be fine. ![]() I actually had this same thing happen to me with a local garage, and I called the additive company myself asking about their FM additive that the garage used to "bring up" their Mercon to Mercon V. It's just the immediate issue right now is improper FM characterists concerning the clutch packs. The Mercon fluid they used probably is not a good of fluid as a Mercon V would be, and in time you'd start to see other negatives. The immediate problem is that there are many clutch packs in an automatic transmission, and they depend on the fluid to have the proper frictional coefficients on when to start locking up and how quickly to lock up. It's not that they used a Mercon instead of a Mercon V and, for the near future, the base oil is bad and causing damage. Yes, even after paying way to much at a Stealership for a flush, they almost always get the hot fill level wrong.Ĥ.) Don't tell your friend and act like you're happy, that way you don't waste your time in a pointless argument.Ħ.) Enjoy your correctly shifting automatic transmission. Since you'll be paying the bill when the trans prematurely chokes in many thousands of miles (since that's how long it'll take to really detrimentally affect your trans), it's in your best interest (which JL does not have in mind) to get the sh1t they put in there out and the right stuff in.ġ.) Call Stealership and confirm with them they use actual Mercon V rated fluid, and not do what JL does (since many Stealership's indeed do exactly what JL does).Ģ.) Go to Stealership and have flushed performed.ģ.) After exiting Stealership, drive 20 minutes a normal pace, park on level surface with car running, cylce slowly through the gears a few times, and with engine running, check the hot level of your trans fluid. ![]() This is exactly a case of the car makes it out of the shop without lurching and belching smoke, so obviously the way they do it is fine. The additive they used (a FM), while possibly making the Mercon they put in there have the close frictional properties of Mercon V, will not give the Mercon rated fluid the other properties that make up the Mercon V spec. What you need to do, since replacing your trans with a quality unit ranges anywhere from $1500 to $2500, is go to a local Stealership and have them flush out the old fluid w/ additive and put in what is supposed to be in there from the get go. This is how these shops save money so they a.) don't have to stock different types of fluid, and b.) don't have to have the morons that generally work there actually pay attention to what they're doing. ![]()
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