Hi,
In a few weeks I was going to change factory fill ATF on my 02 Pontiac Grand AM 2.2L with 20k miles. I was considering Mobil 1 because it's readily available, relatively cheap $5/quart, and has the best properties from any synthetic ATF at least on paper.
However, in this UOA posted by Al
http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=001053
It seems like Mobil sheared down 30% from original weight. I remember that some time ago Mobil ATF had a statement on the label that it was 100% synthetic excluding additive carrier oil. Now bottle just says "Full Synthetic". It seems like it's only a marketing trick and they still use carrier oil. Do you know if they switched for 100% PAO?
Mobil is also fully Dexron III certified.
Redline on the other hand is a little bit more expensive, but I would go for it. I have a few concerns about Redline D4:
- It's not officially certified as a Dexron III
- I don't know what base oil they use and if they use "additive carrier oil"
- It might have a problem with a seal swell if they use PE base
- It might not have very good friction properties which will affect shifting smoothness.
- It might be, however, more shear stable compared to Mobil 1 (just theoretically)
- It might be more heat dissipating than Mobil 1 (again just theory)
- I don't know if I can use it for extended drains which I'm interested in
Please, if you tried these ATFs give me some feedback on them. How's shifting, temperature drop if any, extended drains, and any other info which you think might be useful. If you have some facts or VOA/UOA on these ATFs I appreciate it as well.
Regards,
In a few weeks I was going to change factory fill ATF on my 02 Pontiac Grand AM 2.2L with 20k miles. I was considering Mobil 1 because it's readily available, relatively cheap $5/quart, and has the best properties from any synthetic ATF at least on paper.
However, in this UOA posted by Al
http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=001053
It seems like Mobil sheared down 30% from original weight. I remember that some time ago Mobil ATF had a statement on the label that it was 100% synthetic excluding additive carrier oil. Now bottle just says "Full Synthetic". It seems like it's only a marketing trick and they still use carrier oil. Do you know if they switched for 100% PAO?
Mobil is also fully Dexron III certified.
Redline on the other hand is a little bit more expensive, but I would go for it. I have a few concerns about Redline D4:
- It's not officially certified as a Dexron III
- I don't know what base oil they use and if they use "additive carrier oil"
- It might have a problem with a seal swell if they use PE base
- It might not have very good friction properties which will affect shifting smoothness.
- It might be, however, more shear stable compared to Mobil 1 (just theoretically)
- It might be more heat dissipating than Mobil 1 (again just theory)
- I don't know if I can use it for extended drains which I'm interested in
Please, if you tried these ATFs give me some feedback on them. How's shifting, temperature drop if any, extended drains, and any other info which you think might be useful. If you have some facts or VOA/UOA on these ATFs I appreciate it as well.
Regards,