Just a recommendation to you all... (diff fluid change)

Cristobal09 · 02-17-2012, 12:21 PM

Get your rear diff fluid changed.

So today I had my rear diff fluid changed out to redline fluid, and the crap that came out of the rear diff was just plain bad. Ive got 1700 miles on my car and the oil looked like it had 100000 miles on it. I noticed after somewhat spirited driving, there was always this light burning smell, nothing too bad, but definitely a little noticeable. I dont really notice any difference in driving/performance but it gives me peace of mind that I no longer have a crud filled differential.

somatic · 02-17-2012, 12:41 PM

? ill get mine checked

Cristobal09 · 02-17-2012, 01:03 PM

I did this because a lot of other people changed out their fluid and theirs was disgusting. I had the same outcome. Just takes two quarts of 75w-90 gear oil and you're set.

4r3s · 02-17-2012, 01:07 PM

this only applies to those with the sports package right?

Cristobal09 · 02-17-2012, 01:44 PM

No, we all have rear differentials, the sports package just has a limited slip differential.

wheee! · 02-17-2012, 01:54 PM

I changed mine at 2000km's and it was putrid. Full synthetic in there now and I feel much better. Almost at 20,000km's now so I will change it again soon.... just to be safe!

GM_Traitor3.5 · 02-17-2012, 02:08 PM

Quote:

Originally Posted by Cristobal09

No, we all have rear differentials, the sports package just has a limited slip differential.

Not all of us

( Click to show/hide )

m4a1mustang · 02-17-2012, 02:09 PM

Quote:

Originally Posted by GM_Traitor3.5

Not all of us

( Click to show/hide )

Red__Zed · 02-17-2012, 02:38 PM

I STRONGLY back this recommendation

4r3s · 02-17-2012, 02:46 PM

Quote:

Originally Posted by Cristobal09

No, we all have rear differentials, the sports package just has a limited slip differential.

Thanks, I'm around 35K and its never been done...

Speedy · 02-17-2012, 02:52 PM

The LSD clutches leave some particles in the fluid. Not sure it'll really matter as it'll be dirty again in short order if you get on it a lot. Same thing in my Challenger.

Red__Zed · 02-17-2012, 02:53 PM

Quote:

Originally Posted by Speedy

The LSD clutches leave some particles in the fluid. Not sure it'll really matter as it'll be dirty again in short order if you get on it a lot. Same thing in my Challenger.

Z has a sealed viscous unit.

Speedy · 02-17-2012, 02:55 PM

Quote:

Originally Posted by Red__Zed

Z has a sealed viscous unit.

So no clutches? Interesting. Manual state to change at 30K ?

I take it no friction modifier is required? I need to read up on that.

eastwest2300 · 02-19-2012, 12:28 PM

Quote:

Originally Posted by Cristobal09

I did this because a lot of other people changed out their fluid and theirs was disgusting. I had the same outcome. Just takes two quarts of 75w-90 gear oil and you're set.

Where'd you pick up your transmission oil? and are you sure it only takes 2 quarts?

Cristobal09 · 02-19-2012, 01:23 PM

the rear diff only takes two quarts, the transmission oil you dont need to touch for awhile. Not sure how many quarts of transmission oil you need.

02-17-2012, 12:21 PM	#1 (permalink)
Cristobal09 A True Z Fanatic Join Date: Nov 2011 Location: NOVA Posts: 1,430 Drives: 22 ZL1 & Explorer ST Rep Power: 3372	Just a recommendation to you all... (diff fluid change) Get your rear diff fluid changed. So today I had my rear diff fluid changed out to redline fluid, and the crap that came out of the rear diff was just plain bad. Ive got 1700 miles on my car and the oil looked like it had 100000 miles on it. I noticed after somewhat spirited driving, there was always this light burning smell, nothing too bad, but definitely a little noticeable. I dont really notice any difference in driving/performance but it gives me peace of mind that I no longer have a crud filled differential. __________________ 2022 Camaro ZL1 2021 Explorer ST

02-17-2012, 12:41 PM	#2 (permalink)
somatic A True Z Fanatic Join Date: Aug 2011 Location: Grapevine, TX Posts: 1,767 Drives: 2013 GS350 Rep Power: 18	? ill get mine checked __________________ Passport 9500i HW\|Short Tail Exhaust\|Evo-r CF Fangs & Fog\|Blacked Out Roof\|Status Elite Intake 19/22\|AUTO Shift Boot DIY\|GTR Button\|Rear Limo Tint\|S2carbonworks hood dampeners\|Falken Rt-7m 20"s w/Jade Project Mu Tuner Lugs\|P:JDM Oil Cap\|Tow Hook\|SOLD

02-17-2012, 01:03 PM	#3 (permalink)
Cristobal09 A True Z Fanatic Join Date: Nov 2011 Location: NOVA Posts: 1,430 Drives: 22 ZL1 & Explorer ST Rep Power: 3372	I did this because a lot of other people changed out their fluid and theirs was disgusting. I had the same outcome. Just takes two quarts of 75w-90 gear oil and you're set. __________________ 2022 Camaro ZL1 2021 Explorer ST

02-17-2012, 01:44 PM	#5 (permalink)
Cristobal09 A True Z Fanatic Join Date: Nov 2011 Location: NOVA Posts: 1,430 Drives: 22 ZL1 & Explorer ST Rep Power: 3372	No, we all have rear differentials, the sports package just has a limited slip differential. __________________ 2022 Camaro ZL1 2021 Explorer ST

02-17-2012, 01:54 PM	#6 (permalink)
wheee! A True Z Fanatic Join Date: Sep 2009 Location: Mod Capital of Canada Age: 58 Posts: 7,354 Drives: cars. lots of cars. Rep Power: 40182	I changed mine at 2000km's and it was putrid. Full synthetic in there now and I feel much better. Almost at 20,000km's now so I will change it again soon.... just to be safe! __________________ H&R / Stillen / Berk / HKS / Swift / Michelin / UpRev / SPC / Amuse Rep / Seibon / Fringe XVO / TWM / more... My Journal

02-17-2012, 01:07 PM	#4 (permalink)
4r3s A True Z Fanatic Join Date: Dec 2009 Location: MD Posts: 2,077 Drives: Touring 370z Rep Power: 25	this only applies to those with the sports package right?

02-17-2012, 02:38 PM	#9 (permalink)
Red__Zed A True Z Fanatic Join Date: Jul 2010 Location: window seat Posts: 28,940 Drives: Mostly on two wheels Rep Power: 121	I STRONGLY back this recommendation

02-17-2012, 02:52 PM	#11 (permalink)
Speedy Enthusiast Member Join Date: Jan 2012 Location: TN Posts: 390 Drives: check my signature Rep Power: 14	The LSD clutches leave some particles in the fluid. Not sure it'll really matter as it'll be dirty again in short order if you get on it a lot. Same thing in my Challenger.

02-19-2012, 01:23 PM	#15 (permalink)
Cristobal09 A True Z Fanatic Join Date: Nov 2011 Location: NOVA Posts: 1,430 Drives: 22 ZL1 & Explorer ST Rep Power: 3372	the rear diff only takes two quarts, the transmission oil you dont need to touch for awhile. Not sure how many quarts of transmission oil you need. __________________ 2022 Camaro ZL1 2021 Explorer ST

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