Differential hmming noise? - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Moto-Mojo · 04-15-2021, 01:22 PM

I had used Amsoil gear lube in everything I owned for decades. The Camaro rejected it by making all kinds of noise. GM lube cured all problems. Go figger. It’s a GM car. Take that for what it’s worth.

DonM · 04-15-2021, 01:32 PM

Quote:

Originally Posted by Moto-Mojo

I had used Amsoil gear lube in everything I owned for decades. The Camaro rejected it by making all kinds of noise. GM lube cured all problems. Go figger. It’s a GM car. Take that for what it’s worth.

Amsoil is what I've used twice now in my trans and diff. The first time I changed it out at 50k from GM to Amsoil and Amsoil again now at 140k.

king50 · 04-25-2021, 12:41 PM

I dumped out the Valvoline oil and replaced the differential oil with the factory recommended oil and additive. After driving around for 2 minutes, the differential box is quite as "a mouse". The total cost of oil and additive is $28 from ebay. I tried to save money by buying non-OEM stuff, but it ended up costing me more. Lesson learn... There are somethings that can't be had for cheap. Thanks all for the replies!

InFiD3ViL · 04-25-2021, 12:58 PM

Amsoil Severe Gear 75w-90 in my diff. My car is so loud that I don't think I would even hear any diff noise, so that may be an issue lol.

I did NOT use any additional friction modifier with the Amsoil since everyone I read that used it on our diffs said it's not needed.

romcjr · 04-25-2021, 05:48 PM

I'm fixing to change mine as well with the oem recommended fluids . Question I have is , capacities chart says 1 quart . So is it one quart total , or 1 qt. fluid and 4 oz. additive which would make 36 oz. ? Thanks for the help .

king50 · 04-25-2021, 08:29 PM

Quote:

Originally Posted by romcjr

I'm fixing to change mine as well with the oem recommended fluids . Question I have is , capacities chart says 1 quart . So is it one quart total , or 1 qt. fluid and 4 oz. additive which would make 36 oz. ? Thanks for the help .

The manual says 1 quartz of fluid and 3.3oz of additive. I bough a 4oz bottle of additive and 1 quartz of differential oil. I put the whole bottle of additive in first. Then I filled up the box with differential oil until the oil drips out from the filler hole. Make sure that you jack up your car level. Once the oil is dripping out, it's full. You can close the filler plug.

Check out my jack stand on youtube here. It's the safest jack stand you can get.

ChibiBlackSheep · 04-26-2021, 08:35 AM

Quote:

Originally Posted by king50

I bought a 4oz bottle of additive and 1 quartz of differential oil. I put the whole bottle of additive in first. Then I filled up the box with differential oil until the oil drips out from the filler hole.

x2, just start with the additive and then add fluid until it comes out the fill hole. Or add half a bottle of fluid THEN throw the full additive bottle in and then finish topping off. Can never tell exactly how much it will take, but you want to make sure you get all of the additive in.

04-15-2021, 01:22 PM	#15
Moto-Mojo Fast Cars and Old Guitars Drives: 2015 2SS RS (L99, baby!) Join Date: Apr 2012 Location: N. CA Posts: 3,974	I had used Amsoil gear lube in everything I owned for decades. The Camaro rejected it by making all kinds of noise. GM lube cured all problems. Go figger. It’s a GM car. Take that for what it’s worth. __________________ “I don’t want to belong to any club that would have me as a member.” - Groucho Marx

04-25-2021, 12:41 PM	#17
king50 Drives: 2015 camaro ls Join Date: Apr 2021 Location: saint louis Posts: 7	fixed differential humming noise I dumped out the Valvoline oil and replaced the differential oil with the factory recommended oil and additive. After driving around for 2 minutes, the differential box is quite as "a mouse". The total cost of oil and additive is $28 from ebay. I tried to save money by buying non-OEM stuff, but it ended up costing me more. Lesson learn... There are somethings that can't be had for cheap. Thanks all for the replies!

04-25-2021, 12:58 PM	#18
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,575	Amsoil Severe Gear 75w-90 in my diff. My car is so loud that I don't think I would even hear any diff noise, so that may be an issue lol. I did NOT use any additional friction modifier with the Amsoil since everyone I read that used it on our diffs said it's not needed. __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

04-25-2021, 05:48 PM	#19
romcjr Drives: Two 1984 Z28 / 2014 2SS/RS AGM L99 Join Date: Feb 2021 Location: WALLER , TEXAS Posts: 253 View My Garage	I'm fixing to change mine as well with the oem recommended fluids . Question I have is , capacities chart says 1 quart . So is it one quart total , or 1 qt. fluid and 4 oz. additive which would make 36 oz. ? Thanks for the help .