Should I flush my engine oil before switching from conventional to synthetic oil or vice versa?

No, it is not necessary to flush your engine when switching between motor oils. Typically, conducting a routine oil change and replacing the conventional oil with a synthetic motor oil will not require any additional maintenance.

Do I need a special oil filter for a synthetic oil?

No, synthetic motor oil does not require you use a special filter. Oil filters are used based on vehicle specifications. Refer to your vehicle Owner’s Manual for guidance on what type of oil filter to use.

Is there a way to tell if my engine oil needs to be changed or is running low?

Yes, if equipped, your vehicle’s oil life monitoring system will inform you when your motor oil needs to be changed. Refer to your vehicle Owner’s Manual for more specific guidelines.

Does my transmission fluid need to be changed as regularly as my oil?

No, typically, transmission fluid lasts much longer than most engine oils. Refer to your vehicle Owner’s Manual to identify how often and when your transmission fluid should be changed. Severe usage and regular usage descriptions are provided.

Is there a difference between power steering fluid and transmission fluid?

Yes, there is a difference. There are many types of transmission fluid. GM Genuine Parts and ACDelco recommend referring to your vehicle Owner’s Manual for fluid recommendations for all vehicle systems.

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ACDelco 10-4034 Dexron LS 75W-90 Gear Oil - 32 oz

ACDelco 10-4034 Dexron LS 75W-90 Gear Oil - 32 oz

Product ID: 293941655

Details

Brand
ACDelco
Item Weight
1.75 Pounds
Liquid Volume
0.94 Litres
Package Information
Bottle
Recommended Uses For Product
oil

🚫No top treat additive needed

⚙️75W-90 viscosity for optimal gear protection

🛠️Pre-mixed limited slip friction modifier included

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$129.65

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In stock

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Description

⚙️ Shift into the future with friction-free confidence!

COMPACT CONVENIENT - 32 oz bottle designed for easy handling and precise application
EFFORTLESS MAINTENANCE - Ready-to-use formula eliminates the hassle of additional treatments
TRUSTED BY ENTHUSIASTS - Highly rated with 4.9 stars from 658 reviews—join the community of satisfied pros
BUILT IN LIMITED SLIP MODIFIER - Optimized for 2007+ manual transmissions and transfer cases—no extra additives required
PRECISION ENGINEERED VISCOSITY - 75W-90 grade ensures smooth, reliable gear shifts under all conditions

ACDelco 10-4034 Dexron LS 75W-90 Gear Oil is a premium lubricant tailored for 2007 and newer manual transmissions and transfer cases. Featuring a built-in limited slip friction modifier, it delivers superior gear protection and smooth operation without the need for additional additives. Trusted by professionals and enthusiasts alike, this 32 oz bottle offers a ready-to-use solution that enhances performance and reliability.

Specifications

ASIN	B008BZS6J8
Brand	ACDelco
Brand Name	ACDelco
Container Type	Bottle
Customer Reviews	4.9 out of 5 stars 669 Reviews
Global Trade Identification Number	00707773844007
Included Components	Axle Gear Oil
Item Form	Oil
Item Type Name	Axle Gear Oil
Item Weight	794 g
Liquid Volume	0.94 Litres
Manufacturer	ACDelco
Model Number	10-4034
Number of Items	1
Package Information	Bottle
Part Number	10-4034
Recommended Uses For Product	oil
Specific Uses For Product	Lubrication
UPC	707773844007
Unit Count	31.99 Milliliters
Viscosity	75W-90
Warranty Description	No Warranty

Reviews

R**A

Muy buen producto!

El producto indicado para el diff de Vette C6Z

7.05.2021

B**E

Excellent product.

31.08.2025

B**N

Works great!

I bought this gear oil to replace the differential fluid on my 2018 Camaro SS and so far, so good! I mean it's OEM, so it better work! I had to buy a hand pump to get it flowing, but it was such an easy job, I think anyone can do it. The price seems to have gone up about $10 since I last bought it, but I think it's worth changing out if your car has never had it done before.

2.02.2025

H**L

Silenced rear LS differential

My 2015 Camaro (ZL1) started making groaning noises when turning corners. After changing the fluid, and doing the recommended figure eights in a empty parking lot, the noise went away. I probably didn't need to, but I added an additional ounce of Limited Slip Axle Lubricant Additive (10-4003 / 88900330).

9.08.2025

D**N

GM limited slip differential fluid

This product is for GM rear differential with limited slip feature. The ‘LS’ tag on the label denotes this.

31.03.2026

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