Supercharger oil (Series I SC)

Not a tough job but I replaced the SC oil in the rig. Took 1.5 of the original 2 GM Supercharger Oil bottles.

The old stuff was dirty, gritty and smelled terrible. I have no idea how old it was but I figured better save than sorry.

I used a soap pump to get the old stuff out.

I doubt there is any more power or mileage but I feel it is nice an fresh with good new lubrication.

quote: "...and smelled terrible."

Normal, but you're right... it's some nasty stuff! Stay clear!!!

I thought you couldn't change the SC oil in the 95 model? Where do you change it from?

Jack, I read a discussion on this in the last month or so, don't recall where, here maybe? Anyway, I think it is just that the fill plug is in a less obvious location than the M90. Search around thoroughly, I'll bet you find it.

i changed mine today i took the SC and turned it upside down and just dumped all the crap our, it was black and felt terrible

Do you have to put GM's s/c oil in? I've changed my oil out and put SYNCHROMESH oil inabout a week ago My dumass didnt search first. Will it hurt anything???

for the m62 in your 95, in a pinch you can use 5w 30 synthetic, usually better with 50/50 with lucas oil stab., but really you should stick with GM SC oil. If the SYNCHROMESH is not dedicated SC oil, better get it out and some real stuff in ASAP.

Well its not s/c oil but its for standerd tranys, it should work ok right?

I'd switch it out if I were you. Take 5w30 syn and lucas at 50/50, or GM SC fulid, other stuff plays havoc with our superchargers...

Karma wrote:

I'd switch it out if I were you. Take 5w30 syn and lucas at 50/50, or GM SC fulid, other stuff plays havoc with our superchargers...

what can it do to it? Its just 2 gears, and the oil im useing is syn oil. BTW thank you for all your help

GM s/c oil is a specialty oil made exactly for that one application. i would never use anything other than that oil in the s/c. i cant tell you what may happen, but worse case scenario is the oil overheats, breaks down, and your rotors seize up.
another good thing about the gm stuff is it will last a long time. (i think it is 100k mile service interval)

the dealer will charge you close to $15 for 4oz's of the stuff, but the online vendors sell it for less.

what happens if you put olive oil in the crankcase? i dont know, but i'm not about to find out.

I believe the 95 service manual actually LISTS an alternative to GM sc fluid. Besides that alternative, I'd recommend using only GM or the fluid available from ZZP and/or Intense.

how often do i need to change the oil in the supercharger of my 95 rivi

In theory, Eaton lists the blowers as "sealed for life". However, if its never been done, many of us see smoother operation by giving it a change. Also sometimes, oil can leak out the snout seal, so its a good idea to check it now and then. So, if its never been done, than I would do it. If its been done since you've owned the car, just check to be sure the level is correct. When cold, the fluid should come just to the bottom of the threads of the fill port.

The m62 can use synthetic 5w30, sometimes mixed 50% with lucas oil stabilizer. Or you can get the proper supercharger oil from the dealer(its cheap). Old oil can be taken out with a narrow turkey baster, or with a syringe and tube.

I have a 1995 supercharged and I cannot find the supercharger oil change port. I have cleaned the snout and there is no port visible. Did they make a supercharger without the port?

nope. They all have it. Yours is right where this syringe is sticking:

I'm sure it's on here somewhere but if the supercharger unit needs fluid is there a safe substitute if none is available?

what year is your Riv?

95sc

For the 95s,we have a choice of oils if you go by the FSM.That choice either to use the GM S/C oil or a 50/50 mix of 5W30 & Lucas oil stabilizer.
I have been using the Mix for quite some time and am happy to report that my nose thanks me.

thanks!

I've been using Ester 100 compressor oil and it seems happy.

Summit racing has GM supercharger oil, $9 per bottle plus shipping. Got mine yesterday in preparation for doing the "rattling coupler" repair.

the 95 S/C can use 5w30 syn oil.why waste money?

Do you guys know how many bottles of GM S/C oil you need to get to properly fill the supercharger?