After water crossings
Check axle and transfer case fluid for a milky look after deep water; extended breathers help keep water out.
New gears
Freshly installed ring and pinion sets need the break-in procedure the installer lists.
CARS AND PASSENGER VEHICLES
Off-road 4x4 fluids and lubricants.
Engine oil, differential and transfer case fluid, limited-slip and locker guidance, and water-crossing checks for trail-built 4x4 trucks and SUVs.
Questions: [email protected] · Every AMSOIL link on this page carries dealer #30734402.
Fluids by compartment.
Confirm the fluid type, grade, and specifications in the off-road 4x4 maker’s manual before ordering. These examples are not a fitment result for a specific machine.
Differentials
Front and rear axles list a gear oil; limited-slip units may need a friction modifier.
Gear oil
SEVERE GEAR 75W-90 Gear Lube
SEVERE GEAR 75W-90 synthetic gear lube for compatible gear applications, including demanding towing and hauling use.
Product details Shop at AMSOIL ↗
Gear oil
SEVERE GEAR 75W-140 Gear Lube
SEVERE GEAR 75W-140 synthetic gear lube for compatible gear applications, including demanding towing and hauling use.
Product details Shop at AMSOIL ↗
Differential additives
Slip Lock Differential Additive
Slip Lock Differential Additive for the listed differential treatment applications.
Product details Shop at AMSOIL ↗Transfer case
Transfer cases use ATF, a dedicated fluid, or gear oil depending on the maker.
Transmission fluid
Signature Series Multi-Vehicle Automatic Transmission Fluid
Signature Series Multi-Vehicle Automatic Transmission Fluid for compatible automatic transmissions. Verify the transmission-specific application list.
Product details Shop at AMSOIL ↗
Transmission fluid
75W-90 Manual Transmission & Transaxle Gear Lube
75W-90 Manual Transmission & Transaxle Gear Lube for compatible manual transmissions and transaxles. Verify the transmission-specific application list.
Product details Shop at AMSOIL ↗Engine
Use the maker’s viscosity and specification.
Gasoline motor oil
Signature Series 5W-30 Motor Oil
5W-30 synthetic gasoline motor oil in the Signature Series range, formulated for advanced engine protection.
Product details Shop at AMSOIL ↗
Gasoline motor oil
OE 5W-30 Motor Oil
5W-30 synthetic gasoline motor oil in the OE range, formulated for vehicle manufacturers’ recommended oil-change intervals.
Product details Shop at AMSOIL ↗Chassis
Grease ball joints, U-joints, and driveshaft slip yokes.
Grease & assembly lube
NLGI #2 Synthetic Polymeric Off-Road Grease
NLGI #2 polymeric off-road grease for compatible equipment components in demanding earthmoving and agricultural service.
Product details Shop at AMSOIL ↗
Grease & assembly lube
Synthetic Water-Resistant Grease
A synthetic grease for compatible components exposed to water, including boat trailers and powersports equipment.
Product details Shop at AMSOIL ↗ORDER THROUGH INDEPENDENT AMSOIL DEALER #30734402
Ready to order, or have a question first?
Shop AMSOIL directly with Jeff’s dealer number already attached, or open a business account. AMSOIL handles pricing, checkout, and shipping. If you contact AMSOIL another way, give them dealer number 30734402.
Prefer to talk it through? Email Jeff at [email protected] with your equipment, the fluid now in use, and your approximate volume.
Frequently asked questions
What gear oil for an off-road axle?
The viscosity and specification the axle maker lists; towing or larger tires may call for a heavier grade where allowed.
Do lockers need special gear oil?
Follow the locker maker; some need friction modifier and some do not.
General maintenance information. Always follow the equipment maker’s requirements and the current product data. Product availability, pricing, and account terms are set by AMSOIL.
Industries that use this equipment
More cars and passenger vehicles
Open a commercial account with dealer #30734402
https://www.amsoil.com/business-opportunities/get-a-commercial-account/?zo=30734402
Jeff Pittman · A1 Synthetic Oil · Independent AMSOIL Dealer #30734402 · Newport, Washington · [email protected]