Recommended Oil?
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50 Posts
Just shifted my 2019 GT-350 to AMSoil. Engine, Transfer Case and Transmission, at 12,500. It seems to like the fluids, but I don't track it. Hard to really tell, but it feels a little better and it sounds a little smoother. Very subtle.
I always change the diff and tranny earlier the first time (i.e. I buy all my cars new) and view is as a good break in system flush.
When you go to AMSoil, they let you join their club for 6 months pretty cheaply (like $10 or $20), then give you a 30% discount on your orders. Once I got all those fluids changed, I then ordered and am storing my next 10 quarts of engine oil. At 6 months, I will not renew my membership with the low miles I drive (5k per year in Cleveland).
My ford dealership only charged me labor and an oil filter for replacing those fluids. With the discount, the fluids were the same price as the dealership Motorcraft fluids. Per the warranty book, as long as meet Ford specifications it does NOT void your warranty. My dealership confirmed it. Several of the younger service area reps have mustangs of various kinds, including a Shelby, and they all went to AMSoil and Motorcraft oil filter (good fit).
I always change the diff and tranny earlier the first time (i.e. I buy all my cars new) and view is as a good break in system flush.
When you go to AMSoil, they let you join their club for 6 months pretty cheaply (like $10 or $20), then give you a 30% discount on your orders. Once I got all those fluids changed, I then ordered and am storing my next 10 quarts of engine oil. At 6 months, I will not renew my membership with the low miles I drive (5k per year in Cleveland).
My ford dealership only charged me labor and an oil filter for replacing those fluids. With the discount, the fluids were the same price as the dealership Motorcraft fluids. Per the warranty book, as long as meet Ford specifications it does NOT void your warranty. My dealership confirmed it. Several of the younger service area reps have mustangs of various kinds, including a Shelby, and they all went to AMSoil and Motorcraft oil filter (good fit).
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2 Posts
i have had good luck with Driven FR 50. I started using Driven a few years ago in my 911, and the oil pressure was better with less clatter. In the GT350, there is less clatter with the Driven oil. But I think any 5/50 high quality synthetic should be just fine. Just watch the level and change every 3-4k mi. IMO.
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38 Posts
I switched to Amsoil after the dealer "first free oil change." I have been tracking my GT350 for 3 seasons and I am super happy with the performance and durability of the signature series from Amsoil. I do change somewhat frequently however, after every 3rd full track weekend (Fri - Sat - Sun). NO oil related issues with the engine, no over heating or strange noises... no excess oil burn. I do my own changes but I do know the shops by me will only charge labor and disposal if you bring in your own oil. Good luck with finding filters however, unless things have changed in the last 60 days, they are not too easy to find and are crazy stupid expensive because of it! Only one Ford dealer in Minneapolis/St. Paul had them and I paid 3 times what I did last year. Hope this helps.
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140 Posts
I did all Amsoil on engine trans and diff. Motorcraft is not 100% synthetic and breaks down much quicker. In fact the Tremec trans recommends Amsoil for its trans fluid.
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29 Posts
Filters are not easy to find at the moment.
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50 Posts
That seems to vary br Ford dealer, go online and order from another dealership.
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140 Posts
The trans uses automatic trans fluid so Ford recommends Amsoil synthetic auto trans oil for the Tremec transmission. I changed the engine trans and diff all with synthetic Amsoil.
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