Long-term Experience with Valvoline MaxLife Multi-Vehicle ATF in 4R70W, Anyone?

[1997ThunderbirdLXV6]

Just did the same drive back, with a bit more in-town driving. Starting temperature was 130°F.

This is my temperature at arrival. I'm impressed. I bet the new filter may also be a contributing factor.

 

[Grog6]

With your trans i such good condition, I would suggest getting a jmod done to it, and a new 12- piston, just to prevent future issues. And add a cooler.

 

[1997ThunderbirdLXV6]

Nothing to see on the inside. Interesting nonetheless.

 

[Kidd-7]

This was always a curiosity, just not curious enough to actually do it. Thanks for the pics though. Can you cut open an oil filler next?

 

[1997ThunderbirdLXV6]

On Sunday, I did a longer drive of about 220 miles roundtrip.

This is where temperature maxed out around 70 mph on the way home. On the way down, it was a few degrees lower. When speeds went down to 50-60 mph toward the end of my drive home, temperature settled in the mid-160°.



With my old fluid and filter, long drives always produced temperatures of 180-190°. Granted, those readings may have been during higher ambient temperatures, so final verdict may have to wait till the summer. Still this is very positive.

 

[Rodeo Joe]

Martin,

What are using again for your temperature reading>

Joe

 

[1997ThunderbirdLXV6]

What are using again for your temperature reading>

OBD Fusion. If I remember correctly, I had to pay for that app. I think $5. I had a free app previously for codes, but it didn't read transmission temperature.

 

[1997ThunderbirdLXV6]

And FYI: if you get this app, it requires some initial set-up to make transmission temperature reading work.