Transmission Service Interval - Aisin Recommendations

there is no problem with too clean. It is easy to under-fill them it seems. Important to ensure at the correct temp during top-off. Measuring technique works pretty well too + 5% or so. Better to be a little over than under.

Too cool is not great either. I believe under 160 or so, operating temp, is considered bad.

 

just a drain and fill. probably why i got poor results.

 

Whats that have to do with a 3rd gen?

 

Back in the late 80s, I did a simple filter setup using a remote mount for a spin on Ph8a oil filter.
The filter mount was bolted to the frame rail and plumbed into the tranny cooler return line.
Those filters are rated for 25 microns and the mount can handle 1/2" tubing, so plenty of flow.
When it was finally taken apart, the tranny guy said it was the cleanest tranny he had ever taken apart.

Years ago, we would never change fluid.
I believe these days with shift solenoids, clean oil is a must.

 

This is the spin on Racor filter kit mentioned in the Motor Trend article. Like the idea but wish it had a magnetic component like the magnefine.

Racor mentions the filter element is a synthetic media filter with 234 square inches of media that delivers a 7-micron nominal rating and 10 microns absolute.

https://www.parker.com/parkerimages/Racor/7557 (LFS 22825 Automatic Transmission Filter Kit).pdf

 

So how long on average does the A750 last? My 2015 4.0 DCLB with the A750 only has about 62,000 miles on it. And now that I am retired I put on maybe 4000 miles a year. I expect the tacoma to outlast me quite easily at this rate but strangely enough non of my kids seems to want to inherit it ... And no, as someone has already asked I am not adopting a TW member

 

it will 100% outlast you if you dont wreck it. FWIW, it wouldve done that unadulterated from the factory I appreciate the zealous filters tho, you've done clean work

 

Noticed that the official magnefine online store wasn't working at the moment so sent an email to their support/sales email..

Very quick reply

Our website is temporarily unavailable. We are working on a new store. In the meantime, you can order by calling 800-382-7233 or our Amazon store at https://www.amazon.com/s?me=A33WFIG7XLWS7&marketplaceID=ATVPDKIKX0DER



Regards,

Greg York

Magnefine Filters

 

yep thats me OCD (obsessively clean disorder)

 

It doesn't. Was talking to that other guy with the same truck. All 3rd Gen transmissions suck.

 

I have 220k miles so far on my 2nd gen, way back I did a full flush with the help of the thread on here. Replaced the ws fluid with valvoline max life. No issues so far

 

Up to this point I re-used the gaskets on the the transmission drain plug and the overflow tube.
Are they they same size? I picked up new ones for the drain plug but dont know if i need a different one for the overflow/level plug.

https://www.amazon.ca/CITALL-Transm...S4K?keywords=3517830010&qid=1695385769&sr=8-1

 

They’re the same size

 

Thanks. Since I never took them off I never compared then.

 

Is anyone doing 3 drain and refills as stated in the service manual?

I only did one drain and refill at the first two changes I did before I saw the service manual; last page, steps p and q.

 

Thats one big load of bs. If broken in the way your suppose to, they work very well.

 

Sarcasm dude. Notice the little smiley winking thing

 

I did @ 65,000mi except on the third I dropped the pan and replaced the filter and cleaned the magnet. Not doing it again though fluid/filter looked brand new and there was barely anything on the magnet, think i'll be doing single drain and fills every 30k.

 

That's exceptional and surprising if there was almost nothing on the magnet (do you have one or more than one (4) like the on the 750F transmission pan?? I have done 2 drain and fills in the 60,000 miles I currently have on my 2015. On the last drain and fill I compared the old fluid to brand new fluid. Was a little darker red but still clean and clear. Will be doing a pad drop and clean in the summer and curious whats on the magnets since i have been running a magnefine since very early on.
New on left, old on right

 

Every dealer or shop has given me a different recommendation on changing fluid. I'll likely go between 60-75k.