Originally Posted By: ArcticCat
Originally Posted By: Ven
I have an '06 F-150 FX4 4x4. I flushed the trans at 30,000 miles with M1 Syn ATF. No problems for about the firt 1000 miles, then I started to notice a few things.
FYI, Canadian Mobil 1 ATF is NOT Mercon V approved. It's stil only a Mercon/Dexron III ATF.
http://www.mobil.com/Canada-English/Lubes/PDS/IOCAENPVLMOMobil_1_Synthetic_ATF.asp
You would have been better off (in terms of both performance and cost) simply using the Mercon V additive with your fill of Mobil 1, rather than flushing it and adding it to whatever bulk Mercon/Dexron III fluid you ended up with.
Originally Posted By: ArcticCat
Originally Posted By: Ven
I have an '06 F-150 FX4 4x4. I flushed the trans at 30,000 miles with M1 Syn ATF. No problems for about the firt 1000 miles, then I started to notice a few things.
FYI, Canadian Mobil 1 ATF is NOT Mercon V approved. It's stil only a Mercon/Dexron III ATF.
http://www.mobil.com/Canada-English/Lubes/PDS/IOCAENPVLMOMobil_1_Synthetic_ATF.asp
You would have been better off (in terms of both performance and cost) simply using the Mercon V additive with your fill of Mobil 1, rather than flushing it and adding it to whatever bulk Mercon/Dexron III fluid you ended up with.
Originally Posted By: ArcticCat
Originally Posted By: Ven
I have an '06 F-150 FX4 4x4. I flushed the trans at 30,000 miles with M1 Syn ATF. No problems for about the firt 1000 miles, then I started to notice a few things.
FYI, Canadian Mobil 1 ATF is NOT Mercon V approved. It's stil only a Mercon/Dexron III ATF.
http://www.mobil.com/Canada-English/Lubes/PDS/IOCAENPVLMOMobil_1_Synthetic_ATF.asp
You would have been better off (in terms of both performance and cost) simply using the Mercon V additive with your fill of Mobil 1, rather than flushing it and adding it to whatever bulk Mercon/Dexron III fluid you ended up with.
You are talking about the M1 ATF that was two formulations ago. M1 did re- formulate to Mercon 5, then most recently to multi vehicle which is also Merco 5. I've used M1 ATF ever since it first came out(many years ago) all in Fords and never had a failure. At presant it's been in my Mercury since new.
You mentioned ,reflushed. Were did you go to have your tranny flushed using M1 ATF the first time?
My friend who has a tranny shop says flushing can cause more problems than it's worth. He doesn't do it at all.