- Oct 26, 2017
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A quick backstory..I know the internet is not in agreement on this subject. I have read many conversations on different forums regarding this topic and no one really has really come together on this. The logic is always the same..its the same oil pan and the same motor so it should be the same amount of oil for 99-04.
People often quote a TSB that says Ford changed the spec in 02 and said it applies to all Mustang GTs from 99-04. I have yet to find this TSB. I called Ford and talked to my local dealership service dept. They cannot find any such TSB. They said the spec for that Windsor motor is 5 Quarts. Said the Romeo motors have the 6 Quart requirement. I asked about the OEM dipstick that (Late Model Restorations) LMR.com sells and even gave them the part number. LMR claims its for all Mustang GT 4.6L for 96-04. According to Ford that is for Romeo only and the Windsor disptick is no longer available. You would think this means its been replaced by the Romeo right? The Ford Parts Dept cannot find anywhere in the system where it says the Romeo dipstick is a replacement for the Windsor dipstick. They said its not for the Windsor and suggested I either get a Windsor one from a junk yard or buy an aftermarket one for that motor.
People also quote an independent study that says all the above year 4.6L motors need 6 Quarts due to possible oil starvation under certain circumstances regardless of what the manual says. I cannot find this study either. I can only find people mentioning it.
I sent an email to LMR asking about this TSB that backs up their claim that 6 quarts was indeed recommended by Ford for 96-04. They replied but never provided that TSB. I just have been getting replies saying "it is for those years" and "I had a 99 GT and 6 quarts is what I put in it". If they claim there is a TSB that is giving them the green light to use 6 quarts instead of 5 I'd think they would have it handy. Ford certainly doesnt.
So my questions are these...Does anyone know where this TSB exists? Does anyone have a link to this independent study?
I am not trying to start an oil war here but I'm just trying not to FUBAR my car.
People often quote a TSB that says Ford changed the spec in 02 and said it applies to all Mustang GTs from 99-04. I have yet to find this TSB. I called Ford and talked to my local dealership service dept. They cannot find any such TSB. They said the spec for that Windsor motor is 5 Quarts. Said the Romeo motors have the 6 Quart requirement. I asked about the OEM dipstick that (Late Model Restorations) LMR.com sells and even gave them the part number. LMR claims its for all Mustang GT 4.6L for 96-04. According to Ford that is for Romeo only and the Windsor disptick is no longer available. You would think this means its been replaced by the Romeo right? The Ford Parts Dept cannot find anywhere in the system where it says the Romeo dipstick is a replacement for the Windsor dipstick. They said its not for the Windsor and suggested I either get a Windsor one from a junk yard or buy an aftermarket one for that motor.
People also quote an independent study that says all the above year 4.6L motors need 6 Quarts due to possible oil starvation under certain circumstances regardless of what the manual says. I cannot find this study either. I can only find people mentioning it.
I sent an email to LMR asking about this TSB that backs up their claim that 6 quarts was indeed recommended by Ford for 96-04. They replied but never provided that TSB. I just have been getting replies saying "it is for those years" and "I had a 99 GT and 6 quarts is what I put in it". If they claim there is a TSB that is giving them the green light to use 6 quarts instead of 5 I'd think they would have it handy. Ford certainly doesnt.
So my questions are these...Does anyone know where this TSB exists? Does anyone have a link to this independent study?
I am not trying to start an oil war here but I'm just trying not to FUBAR my car.