I'm due for a trans filter and fluid change and I want to use syn. because I live in Michigan were it gets very cold in the winter and very hot in the summer so syn. seems like a good choice to me and I want use the best one. and if I do a couple of drain/fills to get all syn. will it help my mpg? thanks for the replies.
Amsoil v. M1 syn. ATF
- Thread starter J_Myler
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It might help your mpg a little and it will more than likely make your transmission run cooler. Both of the products listed above are excellent products.
What kind of vehicle are you putting this in?
What kind of vehicle are you putting this in?
I'm sticking with AMSoil. Mobil has a habit of straying from good PAO basestock. Don't trust Mobil's "New Formula" for $2 cheaper than AMSoil.
Originally Posted By: Johnny
It might help your mpg a little and it will more than likely make your transmission run cooler. Both of the products listed above are excellent products.
What kind of vehicle are you putting this in?
It's a 1994 Chevrolet Cavalier with 189,xxx miles on its been taken good care of cents it was new. I got it with 173,xxx miles on it.
It might help your mpg a little and it will more than likely make your transmission run cooler. Both of the products listed above are excellent products.
What kind of vehicle are you putting this in?
It's a 1994 Chevrolet Cavalier with 189,xxx miles on its been taken good care of cents it was new. I got it with 173,xxx miles on it.
Either one will work well for you. Yes you can save a couple bucks per qt with the M1, but I would not do the drain/refill several times. You will come out better with a one time complete flush and this is easy to do. You will throw away too much good, new fluid with a couple drain refills and come out with less % new fluid overall. Don't expect anything but an incremental fuel savings on your choice of ATF. Better flow cold, better protection when hot, and extended service life are the main benefits of the fluids you are considering, IMO.
Don't expect any mileage increase.
A full synthetic ATF will last longer, shear less, and take extreme heat well. Also handy it it is SUPER cold out.
A full synthetic ATF will last longer, shear less, and take extreme heat well. Also handy it it is SUPER cold out.
I don't think that there is a best fluid. Either the Mobil1 or Amsoil will work fine. Don't forget about the other brands like Royalpurple or Redline....
In the winter, when fluid takes a while to warm up, you might notice a minimal MPG increase. Its more noticeable if you have multiple fluids(gear/engine/PSF/'ends/ATF....) changed over at the same time.
A few drain/refills, depending on transmission, might only get you up to 80% new fluid. Depending on vehicle, fluid requirement, AT capacity, current fluid condition(mileage),..... you might just consider a full flush.
In the winter, when fluid takes a while to warm up, you might notice a minimal MPG increase. Its more noticeable if you have multiple fluids(gear/engine/PSF/'ends/ATF....) changed over at the same time.
A few drain/refills, depending on transmission, might only get you up to 80% new fluid. Depending on vehicle, fluid requirement, AT capacity, current fluid condition(mileage),..... you might just consider a full flush.
I choose M1 Synthetic rather than Amsoil for my 2002 Ford Explorer which calls for Mercon V. One of the reasons is that the viscosity of the M1 is higher than that of the Amsoil ATF and falls withing the range of Mercon V while the Amsoil is thinner. Amsoil can be used for Mercon SP and Dexron VI which are thinner ATF's while the M1 synthetic specifically advises against using it in those applications as does OEM Mercon V.
I felt that the M1 synthetic ATF was a better choice than the Amsoil for my Mercon V application.
Rumple
I felt that the M1 synthetic ATF was a better choice than the Amsoil for my Mercon V application.
Rumple
Further thoughts:
For a Mercon V application the Amsoil ATD is a better fit viscosity wise than their ATF. The ATD matches the 100C cSt of Mercon V and Mobil 1 synthetic ATF.
Another choice would be the Redline D4 synthetic ATF. It appears to me that the Redline D4/D6 split is mirrored by the Amsoil ATD/ATF split, although this is based only upon viscosity.
Rumple
For a Mercon V application the Amsoil ATD is a better fit viscosity wise than their ATF. The ATD matches the 100C cSt of Mercon V and Mobil 1 synthetic ATF.
Another choice would be the Redline D4 synthetic ATF. It appears to me that the Redline D4/D6 split is mirrored by the Amsoil ATD/ATF split, although this is based only upon viscosity.
Rumple
The best and cheapest way to do a fluid exchange is via a cooler line flush which you can do yourself. Multiple drain and refills will use more fluid to get to say 90% new ATF. Best to drain and refill the pan then immediately do a cooler line flush.
Spend an extra $20 on a Magnefine filter.
A flush via a machine is also an option, however it will use more ATF than a cooler line flush as the machine never completely empties the new fluid container.
Spend an extra $20 on a Magnefine filter.
A flush via a machine is also an option, however it will use more ATF than a cooler line flush as the machine never completely empties the new fluid container.
Originally Posted By: Donald
The best and cheapest way to do a fluid exchange is via a cooler line flush which you can do yourself. Multiple drain and refills will use more fluid to get to say 90% new ATF. Best to drain and refill the pan then immediately do a cooler line flush.
Spend an extra $20 on a Magnefine filter.
A flush via a machine is also an option, however it will use more ATF than a cooler line flush as the machine never completely empties the new fluid container.
How would i do a cooler line flush?
The best and cheapest way to do a fluid exchange is via a cooler line flush which you can do yourself. Multiple drain and refills will use more fluid to get to say 90% new ATF. Best to drain and refill the pan then immediately do a cooler line flush.
Spend an extra $20 on a Magnefine filter.
A flush via a machine is also an option, however it will use more ATF than a cooler line flush as the machine never completely empties the new fluid container.
How would i do a cooler line flush?
Originally Posted By: J_Myler
Originally Posted By: Donald
The best and cheapest way to do a fluid exchange is via a cooler line flush which you can do yourself. Multiple drain and refills will use more fluid to get to say 90% new ATF. Best to drain and refill the pan then immediately do a cooler line flush.
Spend an extra $20 on a Magnefine filter.
A flush via a machine is also an option, however it will use more ATF than a cooler line flush as the machine never completely empties the new fluid container.
How would i do a cooler line flush?
What he said...
Originally Posted By: Donald
The best and cheapest way to do a fluid exchange is via a cooler line flush which you can do yourself. Multiple drain and refills will use more fluid to get to say 90% new ATF. Best to drain and refill the pan then immediately do a cooler line flush.
Spend an extra $20 on a Magnefine filter.
A flush via a machine is also an option, however it will use more ATF than a cooler line flush as the machine never completely empties the new fluid container.
How would i do a cooler line flush?
What he said...
Just did a 80k run on my dad's Voyager van using Amsoil ATF. Pan was spotless and pan filter looked very clean.
I ran the magnifine filter the whole 80k run. The fluid still had a real bright red color to it. I was impressed.
Longest ATF fluid run I have ever done. The trans was rebuilt, I then filled the trans after I installed it. So it broke in on the Amsoil as well.
I ran the magnifine filter the whole 80k run. The fluid still had a real bright red color to it. I was impressed.
Longest ATF fluid run I have ever done. The trans was rebuilt, I then filled the trans after I installed it. So it broke in on the Amsoil as well.
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Originally Posted By: jdean
I would take into consideration the synthetic fluid that has the most friction modifier and the base fluid would have to be a group IV.
I would take into consideration the synthetic fluid that has the most friction modifier and the base fluid would have to be a group IV.
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