Thread: Removing Supercharger Snout Oil

Awesome, thanks for the info...

I also do mine yearly. I just checked the s/c oil in a friend of mines Regal GS last night, and hers was BLACK. She has damn near 200K miles on the GS and I'm pretty sure it's never been done.

Oh, BTW I have s/c oil remover kits as well, if anyone is interested.

Where can I buy a oil remover?

^ huh?

What are you trying to clean or degrease here?

~F~

well i'd like to clean mine. im at 56k and never done it....what type of oil and how much do u put back in?

Originally Posted by offroadfury6

well i'd like to clean mine. im at 56k and never done it....what type of oil and how much do u put back in?

I recommend using and only using GM Supercharger oil.

GM Part Number = 12345982

Those are a 4oz. bottle. You will need two bottles to fill your M90.

I have never had a GenIII or GenV M90 take anything less than 2 whole bottles unless you under fill it.

The fill line is the bottom of the threads of the fill plug hole in the snout.

Therefor, 8 oz. give or take a little is what they normally take since the measurements on the bottles from GM are not always perfect. Some times you have some extra...some times you need some more.

~F~

Yeah, just a few weeks ago I had to change out my s/c oil, and it took me both bottles, and it barely touched the bottom of the threads. That stuff smells good.

ill check wid GM dealer next week on it, no time rite now...

has anyone ever emptied out the SC oil and cleaned it out with some type of cleaner before inserting new oil? Is there ever any type of build up or gunk in there......sludge or anything?

Here we go

Originally Posted by TLSheff

Originally Posted by BillBoost37

Yeah, I was talking smack about you today.

Still got the original pics of that TSB or maybe the number on the sc oil and mobil 1? I got GM ESI and can maybe search on it to post the original document.

LOL Always talkin smack about me it seems... jerk

ya I got the original scans in my FB

http://i93.photobucket.com/albums/l79/tlsheff/Work%20lol/SuperchargerOilPage1.jpg
http://i93.photobucket.com/albums/l79/tlsheff/Work%20lol/SuperchargerOilPage2.jpg

Remember they are older documents but I called and verified thru GM that they still stand by these documents as replacements for the fluid. You just need to replace the fluid more often, as you would expect with motor oil.

Originally Posted by BillBoost37

Here we go

Did I read that right? 5W30 synthetic oil?

Originally Posted by slick2500

Did I read that right? 5W30 synthetic oil?

Yes you did.

the bulletin is old, technically says for the M62 superchargers, but the oil is for the gears, coupler, and bearins in the snout... same as the M90s. Same fluid used for both as well. So I called tech support for GM personally and asked if it stands for the M90s and they said it can be but you would have to replace it alot sooner.

As I said, we've had debates over it, some go by it, some call it blasphemy. Its up to you, keep it maintained and you shouldn't have any problems.

Since that was posted 7/22/2008 I would imagine anything he had "percolating" is not good anymore. He's barely on here anymore as it is, I doubt if he is still trying to come up with a new fluid.

Recommended is the GM supercharger fluid, if you need cheaper buy it from Intense-racing.com or some other vendor online and order it, or do like what was said by Bill & Myself and there is a bulletin (highly debated by some) that says you can use Mobil1 5x30 oil in place, you just have to change it every 10k(ish) instead of the 30k/50k/100k/1yr people normally do.