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4l60e

jpremeaux

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jpremeaux Enthusiast

jpremeaux

Posted
Posted

For those of you that have had your 4L60e OVER 100,000 miles that works flawless. What has be your servicing routine fluid change intervals, type of fluid, how may filter changes, and flushed or not ? Thanks

VMax2007 Senior Enthusiast

VMax2007

Posted
Posted

My old 2000 GMC Sierra Z71 had 90+K miles on it 2 years ago when I sold it to my brother and I had never touched it. It now has well over 100K on it and I am pretty sure he has not touched it either.

norsemanberg Enthusiast

norsemanberg

Posted
Posted

I have 110K on my truck and i do a good amount of towing. I changed my fluid and filter at 100K, fluid still looked good, didn't smell burnt but the filter did need to be changed.

cbgrant74 Enthusiast

cbgrant74

Posted
Posted

I'm at 104k in my '02 half-ton. I tow my boat a bit, but nothing extreme. Changed the fluid & filter (no flush) at 90k. It needed it, and based on what I saw I'll do it again at 135 to 140k. Oh, I wouldn't say the 4L60E is working "great," but no worse than it ever has.

superjim Senior Enthusiast

superjim

Posted
Posted

Not sure that the 99 had the 4L60E, but I think it did.

Had 3 1999's. One had around 250,000 on it...changed fluid and filter at 50,000 miles and after that..never did anything to it except drive it.

 

Both of the other ones had slightly over 100,000 miles...they had also been changed at about 50,000. After that, never did anything to them.

mxzeatr Enthusiast

mxzeatr

Posted
Posted

My 99 has 179k on it now.

 

I changed the fluid at 125k a year after I bought it. Not sure that it was touched again though. Its still clean now. I tell you pulling the pan off was a pain in the arse. The exhaust wouldn't allow the pan to fall down enough to get it off. Ended up having to pull the exhaust back 1/2" or more to do it.

 

I'll dump the fluid and replace this summer, but will leave the filter for another 50k if it makes it that far....

music Senior Enthusiast

music

Posted
Posted
For those of you that have had your 4L60e OVER 100,000 miles that works flawless. What has be your servicing routine fluid change intervals, type of fluid, how may filter changes, and flushed or not ? Thanks

 

My 99 had about 88k before I traded to an '08 (I know, you wanted over 100k, but it's close). I tow, so the fluid and rear differential were changed at 50k. Otherwise, the only thing that was ever changed on that truck was oil, tires and an air filter.

killterrorists Enthusiast

killterrorists

Posted
Posted

I have a 01' Z71 silverado with over 170,000 miles. I bought the truck with 120,000 and changed the trans fluid and filter at 150k no flush. I assume the previous owner cahnged or flushed the fluid once before also. So far the trans works fine, its the damn G80 that died first.

red29 Enthusiast

red29

Posted
Posted

I have an 03 tahoe with the same tranny and pushing 150K miles i drain and refill the tranny once a year never broke the pan gasket yet to change filter and never had it flushed. how ever i did use the LUCAS tranny treatment lst year just because AZ had it on sale.

jpremeaux Enthusiast

jpremeaux

Posted
  • Author
Posted
I have a 01' Z71 silverado with over 170,000 miles. I bought the truck with 120,000 and changed the trans fluid and filter at 150k no flush. I assume the previous owner cahnged or flushed the fluid once before also. So far the trans works fine, its the damn G80 that died first.

 

Chris did you tow alot? Just wonndering if this helped your G80 fail.

AirForceAngler Enthusiast

AirForceAngler

Posted
Posted

I put over 120000 on my 2000 K1500 with the 4L60E. Changed the fluid and screen at about 90K, never had any problems with it. It outlasted my engine!

bowserb Enthusiast

bowserb

Posted
Posted

Have a couple trucks at work, fluid/filters changed every 45-50k, got a 2000 with 179k, and a 97 with 231k.........as long as you dont drive'em like hell, and change the fluid and filter around every 45-50k they are pretty decent transmissions. If your worried I'd recommend an external trans oil cooler, might be worth it.......but like I said.......a transmission's life is reflective of how you drive it and maintain it, if its not run hard, 150k-200k esp in the newer ones 2000-up is a pretty good estimate......

jpremeaux Enthusiast

jpremeaux

Posted
  • Author
Posted

It looks like every one so far with good mileage on there 4l60e has done basic drop and fill around 50k or 100k. From what i can tell to is most of you have only had change the fluid once or twice for the life of your tranny. I am not a fan of flushing my tranny nor does it look like others are that have responded. keep the great input coming! :D

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