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 10-4091 Rear Axle Lubricant - 32 oz

ACDelco 10-4091 Rear Axle Lubricant - 32 oz

Product ID: 442531589

Details

Brand
ACDelco
Liquid volume
32 Fluid
Material
Calcium
Package information
Bottle
Recommended uses for product
Vehicle

🔥250°C flash point for safety

🛠️SAE 75W-90 viscosity grade

🛢️32 oz premium lubricant

Description

🛢️ Keep your ride smooth and protected — don’t let your axle miss out!

PERFECT VOLUME - Generous 32 oz bottle designed for easy application and long-lasting use.
CORROSION DEFENSE - Calcium Sulfonate base guards your vehicle’s rear axle against rust and wear.
PROVEN RELIABILITY - Rated 4.8/5 by professionals who demand durability and quality.
FACTORY GRADE PERFORMANCE - Trusted ACDelco formula ensures optimal rear axle protection and smooth operation.
HIGH TEMPERATURE STABILITY - Withstands extreme heat up to 250°C, preventing breakdown under pressure.

The ACDelco 10-4091 Rear Axle Lubricant is a 32 oz bottle of high-performance, calcium sulfonate-based oil with SAE 75W-90 viscosity. Engineered in the USA, it offers superior corrosion protection and thermal stability up to 250°C, making it a trusted choice for vehicle maintenance professionals and enthusiasts alike.

Specifications

ASIN	B06Y5JNFJ9
Best Sellers Rank	#215,116 in Automotive ( See Top 100 in Automotive ) #48 in Motorcycle Lubricants
Brand Name	ACDelco
Container Type	Bottle
Customer Reviews	4.8 4.8 out of 5 stars (122)
Flash Point	250 Degrees Celsius
Global Trade Identification Number	30808709067871
Included Components	ACDelco - Rear Axle Lubri (A) (800522)
Item Form	Oil
Liquid Volume	32 Fluid Ounces
Manufacturer	ACDelco
Material	Calcium Sulfonate
Model Number	10-4091
Number of Items	1
Part Number	19300457
Recommended Uses For Product	Vehicle
SAE J300 Viscosity Grade	75W-90
Specific Uses For Product	Prevent Corrosion
UPC	808709067870
Unit Count	32 Ounce

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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The delivery time was excellent, and the packaging was secure.

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