How to Boost Fuel Mileage

fuel mileage

Follow these seven tips on your next trip to help boost your fuel mileage and save a little extra at the pump. But be sure to avoid this dangerous practice.



Do Fuel Additives Work?

AMSOIL P.i. fuel additive

Motorists expect fuel additives to immediately boost performance or fuel economy. But most require use for several tanks of fuel to work. Not AMSOIL P.i.



What is a Limited-Slip Differential (and What Type of Gear Lube Should I Use)?

Your differential allows you to corner safely while putting maximum traction to the ground. Here’s how it works, and what kind of gear lube to use.



Why Does My Engine Knock? 3 Possible Explanations.

Do you hear an engine knocking sound when you hit the gas? It could be due to pre-ignition or detonation. Here’s what you can do about it.



Do Older Engines Need Oil With ZDDP Additives?

Using a high-zinc oil with a high dose of ZDDP additives helps protect classic car and hot rod engines. AMSOIL Z-ROD Synthetic Oil contains 1400 ppm zinc.



Can I Use The Same Oil Filter Twice? (And Other Oil Filter Questions Answered)

Oil filter

In theory, your oil filter has a simple job: capture wear-causing contaminants and hold them in the filter media so they don’t run amok inside your engine. But lots of factors can throw a wrench into this plan, which can raise filtration questions.



More AMSOIL Products Available in the Award-Winning Easy-Pack

Sometimes an idea so great comes along it makes some wonder, “Why didn’t anyone think of this sooner?” Case in point: AMSOIL easy-packs.



The Pros and Cons of Semi-Synthetic Oils and Synthetic Blends

How to check oil properly

Generally speaking, synthetic blends and semi-synthetic refer to the same thing: an oil that uses a combination of conventional and synthetic base oils in its formulation.



Why Does Motor Oil Turn Black?

How to change your oil

Find out why motor oil turns black and how that may affect your engine and, more importantly, if it signals the time for an oil change.



How Often Should I Change Front or Rear Differential Fluid?

Chevrolet silverado 1500 Towing Camper

How often you should change front and rear differential fluid depends on your vehicle, driving conditions and differential fluid quality.