Snake oil. Mouse milk. Whiffle dust. Take your pick — few products have earned such unflattering sobriquets as aftermarket motor-oil additives. And for the very good reason that these promised ...

Under normal circumstances, most modern engine oil and gasoline brands work fine on their own to keep your engine running smoothly. But there may be cases where even the best of them could use a ...

Q: I have a couple of friends: one swears by oil additives – especially the brand Lucas – and another claims an oil additive ruined his truck engine. What is your take on oil additives? A: Some oil ...

Aftermarket additives are a popular off-the-shelf item at truck stops and parts counters, but many of the necessary additives already are formulated in the diesel engine oils directly from the ...

You already know how critically important regular oil changes are for your car. Without them, your car’s innermost components and systems can face serious problems — and you could wind up with costly ...

From the time the Environmental Protection Agency proposed that ultra-low sulfur diesel (ULSD) be run in all on-highway diesel vehicles to when it was fully implemented in late 2006, there has been ...

Oil additives play an essential role in maintaining car engine health. They provide additional lubrication, protect against wear and tear, and help remove impurities and build-up from your engine.

We earn commissions from purchases you make using links in our articles. Learn more. Most drivers know that regular oil changes are necessary to maintain the life and performance of their vehicle. For ...

Winter is the time of year that really puts diesel trucks and tractors to the test. Sure, a boosted engine loves cold air, but you know what doesn’t? The fuel that makes these workhorses run. That’s ...