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Switching To Amsoil

huntinfishn

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huntinfishn Enthusiast

huntinfishn

Posted
Posted

i want to switch my transmission fluid over to amsoil, but i am not sure how, or even if it is possible, to get most of the old fluid out of the tranny. has anyone done this? thanks

 

1997 2500 4l80e

 

i read a post where someone changed fluid through the cooler lines, anyone ever done this?

 

 

 

stan

takethebounce Enthusiast

takethebounce

Posted
Posted

There are quite a few posts on this and most are simular to what I would do.

 

On my last truck I dropped the pan and allowed everything to drain and then pulled the cooler off and drained it as well. Filled it with the Amsoil and ran it for six months then did it all over again.

 

I figured the first time through it would mix with the old stuff and on the second change I would have pretty much a very high Amsoil content.

 

Right away I found the truck went into gear easier and shifted much smoother.

 

If you were concerned about price then don't do what I did. I haven't tried the cooler line way.

huntinfishn Enthusiast

huntinfishn

Posted
  • Author
Posted

thanks take, i suppose having some of the older fluid still in the tranny mixing with the new isn't an issue? also, you said right awayyou noticed a difference, was this on the first change or the second, and how did the fluid look after the second change? thanks again,

 

stan

takethebounce Enthusiast

takethebounce

Posted
Posted
thanks take, i suppose having some of the older fluid still in the tranny mixing with the new isn't an issue? also, you said right awayyou noticed a difference, was this on the first change or the second, and how did the fluid look after the second change? thanks again,

 

stan

 

 

I believe Amsoil says it mixes well with other types of fluids. Check their website to confirm, I didn't run into any issues but on the first change I did put in some Lucas tranny fix which apparently helps blend different fluids. Right away I found the truck went into gear smoother, I am not attributing it soley to the Amsoil, it may have done so with conventional ATF but I certainly give credit to the Amsoil name for building the reputation they have. I personally have no experience with Royal Purple but I am sure it is a great product as well.

Freyguy Enthusiast

Freyguy

Posted
Posted

I couldn't get to the amsoil link, but I'm pretty sure it's the method I used.

 

First I dropped my pan and changed the filter, cleaned the pan, then filled up with pan capacity. Then I took of the transmission line at the top of the radiator and put a hose on the line into a bucket with measurements on it (Note: fluid comes out of radiator at top. I learned this the hard way). I would just start the truck and go through the gears, and shut it off when I had 2 or 3 quarts. Then fill up the same amount you just took out. You do this until you go through the whole capacity. Two guys is pretty much a must.

 

Worked great for me.

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