Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
FULLY-SYNTHETIC FORMULAS - created from polyol ester base stocks, offer excellent lubrication under extreme conditions | ENGINEERED TO PROVIDE - the highest degree of protection and improvement of differential efficiency for better mileage, longer drain intervals, and less wear, exceed API GL-5 specifications | NOT RECOMMENDED - for most synchro applications due to the products extreme slipperiness | POPULAR GEAR OIL FOR - Many performance racing applications like Sprint, Midget, Dirt Late Model and Quick Change Differentials, Detroit Lockers and spools, NHRA Top Fuel and Funny Car rear ends, most popular ShockProof product, many racing and specialty applications | WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises
This gear oil seems to do its job well, but I struggled a bit with the viscosity. It's definitely heavy shockproof, which is great for my vehicle, but just know it's a bit tougher to pour out of the gallon jug than I expected.
J
Jacob Thompson
Disappointed, didn’t meet expectations
I was excited to try this Red Line oil but had issues with it not performing as well as I hoped in my older vehicle. It didn't fix the grinding noises like I expected. I might need a different product next time.
B
Bradley Smith
Very impressed with performance
I've used several gear oils before, but the Red Line Heavy Shockproof is by far the best. My differential feels smoother, and the oil holds up under tough conditions. A solid choice for anyone needing a quality oil.
N
Nina Patel
Arrived with a dented container
The oil itself seems fine, but when it arrived, one of the gallon containers had a dent in it. Not ideal, but I didn't want to hassle with returning it. Just a little disappointed with the packaging condition.
C
Carlos Mendoza
Great for my truck's needs
I bought the Red Line Heavy Shockproof Gear Oil for my old truck, and it has made a noticeable difference. The 1-gallon pack is a good value for what you get, and I appreciate the reliability of Red Line products. Highly recommend it if you want to keep your gear running smoothly!
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FAQs
Have a question ? We are here to help.
Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
