2003-04 Mach 1 Registry Owners Club - View Single Post

texas_snake · 06-12-2019, 11:37 AM

Adding some thoughts since I recently did this. My 03 Mach 1 was having issues when cold (bad 2nd gear grind) and slow shift until fully warmed up. It was really ticking me off. It had been filled to the fill hole (not sure the oil, I know the clutch had been changed) by the last owner.

I swapped that out for 3.3 qt of Mobile 1 full synth AFT. Never been better. I still take the first shift of the day to 2nd slow, but no grinding and it performs great after that. I did not want to have any additives, so just the oil. There are certainly lots of oil choices, but you really need to follow the TSB and reduce the amount of oil in it to new guidance (do not use the fill hole which is too much).

I plan to put the same in my 03 Cobra which has a terrible first shift into 2nd in the morning.

06-12-2019, 11:37 AM	#5
texas_snake Registered User Join Date: May 2018 Location: Austin Posts: 16	Re: Tremec 3650 fluid capacity Adding some thoughts since I recently did this. My 03 Mach 1 was having issues when cold (bad 2nd gear grind) and slow shift until fully warmed up. It was really ticking me off. It had been filled to the fill hole (not sure the oil, I know the clutch had been changed) by the last owner. I swapped that out for 3.3 qt of Mobile 1 full synth AFT. Never been better. I still take the first shift of the day to 2nd slow, but no grinding and it performs great after that. I did not want to have any additives, so just the oil. There are certainly lots of oil choices, but you really need to follow the TSB and reduce the amount of oil in it to new guidance (do not use the fill hole which is too much). I plan to put the same in my 03 Cobra which has a terrible first shift into 2nd in the morning.