Not everyone is a car enthusiast, meaning many drivers are likely still using the oil option favored by the manufacturer or dealer in their vehicles. However, there can be a significant price ...

Motor oil has quietly become one of the most important choices car owners make, especially as vehicles routinely cross ...

It doesn't matter if you have a hybrid or conventional gas-powered car, a good motor oil can make the difference between a long-lasting engine and a sputtery ride. Here's what you should look for when ...

What is a synthetic oil? A synthetic oil is a petroleum based oil but has laboratory created additives & other components that meet a particular set of operating parameters. Most synthetic oils in ...

We may receive a commission on purchases made from links. Synthetic motor oils have been around for a while now, longer than most gearheads realize. The first synthetic hydrocarbon oils were created ...

Car maintenance can be as difficult as it is messy. This is primarily because there are just so many fluids involved. Fluids of the darkest, stickiest, most potentially dangerous sort, in many cases.

Amsoil has a complete line of diesel engine synthetic oils. The line features the Signature Series Max-Duty Synthetic in 5W-40, 5W-30, 10W-30, 15W-40, and 0W-40 grades. The line also includes ...

This article was updated March 6, 2023. It was originally published Aug. 1, 2001. Gears—even plastic ones—need to be lubricated if engineers are going to coax the best performance out of them. In the ...