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.
Red Line Synthetic ShockProofGear Oil provides unequalled protection for high-performance differentials and transmissions which are heavily loaded or which see shock-loading. This revolutionary lubricant is completely different from conventional lubricant technology in several ways. The viscosity characteristics are significantly improved. Gear teeth need high viscosity at high temperatures to prevent metal-to-metal contact and a low viscosity when cold to reduce fluid friction. The ShockProofchemistry significantly reduces the thinning effect of high-temperatures. The Heavy can be rated as a 75W250 Gear Oil, but has the lower internal fluid friction of an SAE 75W90. The LightWeight can be rated as a 75W140 Gear Oil, but has the lower internal fluid friction of an SAE 30 motor oil. The SuperLight can be rated as a 70W90 Gear Oil, but has the lower internal fluid friction of an ATF.
The gear oil itself is great; I trust Red Line for my bike’s differential. But I was disappointed with how the 4-pack was delivered. One of the bottles had a small dent, which made me nervous about leaks later.
M
Markus Schmidt
Stopped working after a week
I used the Red Line 58204 for my motorcycle and it seemed fine at first, but then it started making weird noises after just a week of use. I’m really bummed since I heard great things about this brand.
C
Carlos Mendoza
Solid protection for my gear!
I've been using the Red Line 58204 gear oil in my truck for a few months now. It’s held up great under heavy loads, and I love that it’s shockproof. I feel more confident driving during tough conditions knowing my gear is well-protected.
S
Sarah Thompson
Great oil but pricey
This 1-quart pack of Red Line gear oil does a good job. I noticed smoother shifts in my car's transmission. But honestly, it seems a bit expensive for just one quart. Still, it does the job well enough that I might buy it again.
J
James O’Connor
Highly recommended if you need durability
Used the Red Line shockproof gear oil in my Jeep and it's been fantastic. No more grinding noises and the shifting is so much smoother. It’s a must-have for anyone off-roading or using heavy-duty gear.
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.
