4x4s run under enough load as to need a little more protection. 

If you drive off road … a lot more.

Generally, a Quart of Oil Supplement is recommended for engine treatment to prevent wear, dry starts and protect against oil breakdown and heat stress.

Manual Transmissions, transfer cases and rear axels should be protected with our Extreme Pressure gear oil additive.

Automatics transmissions should be treated with either Auto Trans treatment or oil Supplement in larger transmissions.  10% by volume should do.

Chassis components in 4x4s take a beating.  Our Waterproof Extreme Pressure grease is legendary for fighting rust, corrosion and wear in wet and dirt conditions.