Royal purple 75w90 w friction

JoshuaHyperblue2ss · 02-16-2017, 04:25 PM

Anyone use this at 1600 miles 2 track events need to change I have always had better luck with purple then AC Delco. Which is same price. Want pick some up today. But thought get community advice as the gear oil threads only talk about AC Delco and dears hip oil

camaro5 · 02-16-2017, 07:10 PM

This my choice:

Amsoil Severe Gear 75W-90

Formulated for the severe operating conditions of today’s pick-up trucks, SUVs, heavy equipment and other hard-working vehicles.

AMSOIL Severe Gear is compatible with most limited-slip differentials.

If limited-slip differential chatter occurs, add AMSOIL Slip Lock friction modifier additive.

AMSOIL Slip Lock Differential Additive (ADA) is formulated with advancedfriction modifiers and is designed to eliminate

gear-housing chatter in cars, trucks and SUVs equipped with clutch-type limited-slip differentials.

SmAC · 02-24-2017, 07:18 AM

I changed my diff fluid out a few months ago with the Royal Purple.

Gunmetalmissle · 02-24-2017, 01:50 PM

My ls1 trans am did not like royal purple. I would stick with the GM fluid plus additive.

oldman · 02-25-2017, 03:38 PM

Did RP, it does groan on the first few turns after start up. I may add some more friction modifier when I get a chance... no big deal, I bet it is stone quiet during the summers..

SuperSnake1972 · 11-09-2023, 09:39 AM

Try ULTRA 1 PLUS 75W90 GL5.

NewCamaroOrder · 02-10-2024, 12:56 PM

Here in CA I haven't heard any groaning sounds with RP. I say CA because it never really gets cold here.

I've never had good luck with stock fluids, especially Mopar. I boiled the dif fluid in my 2000 Dakota RT. I did drive around 110 for 2 hours on a road trip in the middle of the night. Apparently, the dino fluid they used in that truck would boil at 600 degrees, lol. What do you know. I put synthetic w/limited slip additive and never had another problem. Luckily they built a strong dif to take that abuse and live.

I didn't want to take any chances with my Camaro so I went with RP fairly early in the cars life.

Christian1LE · 02-10-2024, 01:28 PM

I've been using OEM and my car is basically a track car only. I change it every 24 track hours, never had any issues. I'm at 10,500 miles total with about 7000 of those being on track.

WhiteMale · 02-11-2024, 07:30 AM

My Z diff has the RP in it now, would use it again, no question. Not a track car though if that even matters.

AZIROC · 02-11-2024, 11:58 AM

I'm a RP fan but recently switched to Amsoil. Also switched to Amsoil Severe Gear 75W-90 this past season. I had RP prior and no issues.

KLG · 02-17-2024, 09:15 PM

Quote:

Originally Posted by JoshuaHyperblue2ss

Anyone use this at 1600 miles 2 track events need to change I have always had better luck with purple then AC Delco. Which is same price. Want pick some up today. But thought get community advice as the gear oil threads only talk about AC Delco and dears hip oil

Yes, I use RP MaxGear 75w-90 in the differential of my Camaro and also in the differential of my C7 Z06.

02-16-2017, 04:25 PM	#1
JoshuaHyperblue2ss Drives: 2016 Hyper Blue 2SS Join Date: Jun 2016 Location: Sioux Falls Posts: 129	Royal purple 75w90 w friction Anyone use this at 1600 miles 2 track events need to change I have always had better luck with purple then AC Delco. Which is same price. Want pick some up today. But thought get community advice as the gear oil threads only talk about AC Delco and dears hip oil __________________ 2016 HyperBlue 2SS, A8, MRC, NPP, Grounds Effect Package. Performance: Psc1 Pro-Charger stage 2 FMIC Helica Gears Aesthetics: 15% 3m Tint all around/phastek full blackout kit Debaged sides, Tinted inner tail lights, Black Bow Ties, 20 Black 5 spoke rims

02-25-2017, 03:38 PM	#5
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,320	Did RP, it does groan on the first few turns after start up. I may add some more friction modifier when I get a chance... no big deal, I bet it is stone quiet during the summers.. __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

11-09-2023, 09:39 AM	#6
SuperSnake1972 Drives: 2020 chevrolet camaro 2SS Join Date: Feb 2023 Location: arizona Posts: 75 View My Garage	Rear Diff Lube Try ULTRA 1 PLUS 75W90 GL5.

02-16-2017, 07:10 PM	#2
camaro5 Drives: X-15 Velocipede Join Date: Mar 2008 Location: SW Florida Posts: 4,637	This my choice: Amsoil Severe Gear 75W-90 Formulated for the severe operating conditions of today’s pick-up trucks, SUVs, heavy equipment and other hard-working vehicles. AMSOIL Severe Gear is compatible with most limited-slip differentials. If limited-slip differential chatter occurs, add AMSOIL Slip Lock friction modifier additive. AMSOIL Slip Lock Differential Additive (ADA) is formulated with advancedfriction modifiers and is designed to eliminate gear-housing chatter in cars, trucks and SUVs equipped with clutch-type limited-slip differentials.

02-24-2017, 07:18 AM	#3
SmAC Drives: 2016 2SS Join Date: Aug 2016 Location: Ohio Posts: 68	I changed my diff fluid out a few months ago with the Royal Purple.

02-24-2017, 01:50 PM	#4
Gunmetalmissle Drives: 16 ngm ss Join Date: Jan 2017 Location: NJ Posts: 233	My ls1 trans am did not like royal purple. I would stick with the GM fluid plus additive.

02-10-2024, 12:56 PM	#7
NewCamaroOrder Drives: 2017 Camaro 2SS Nightfall Gray 1LE Join Date: Mar 2017 Location: SoCal Posts: 86	Here in CA I haven't heard any groaning sounds with RP. I say CA because it never really gets cold here. I've never had good luck with stock fluids, especially Mopar. I boiled the dif fluid in my 2000 Dakota RT. I did drive around 110 for 2 hours on a road trip in the middle of the night. Apparently, the dino fluid they used in that truck would boil at 600 degrees, lol. What do you know. I put synthetic w/limited slip additive and never had another problem. Luckily they built a strong dif to take that abuse and live. I didn't want to take any chances with my Camaro so I went with RP fairly early in the cars life.

02-10-2024, 01:28 PM	#8
Christian1LE Drives: 2004 BMW 330CI, 2022 1SS 1LE Join Date: Dec 2021 Location: NC Posts: 745	I've been using OEM and my car is basically a track car only. I change it every 24 track hours, never had any issues. I'm at 10,500 miles total with about 7000 of those being on track.

02-11-2024, 07:30 AM	#9
WhiteMale Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020 Location: MO Posts: 1,992	My Z diff has the RP in it now, would use it again, no question. Not a track car though if that even matters.

02-11-2024, 11:58 AM	#10
AZIROC Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019 Location: Arizona Posts: 734	I'm a RP fan but recently switched to Amsoil. Also switched to Amsoil Severe Gear 75W-90 this past season. I had RP prior and no issues.

User Name		Remember Me?
Password