Tag: additives

Find out how spark plugs, Perry Mason, and grilled squirrels can be related to fixing a Civic.

Prolonging your engine's life may mean keeping clean oil in it instead of feeding it slick additives.

Dan's dealer says he'll need to add urea to his new Mercedes's engine. Is this necessary or is Dan getting suckered?

Why should John pay his dealer for a fuel-induction service when he can save $100 by using a gas additive?

I learned that a "homemade octane booster" had been added to the gas tank of my friend's early-'80s Pontiac Firebird by an angry little brother.  The engine was running better than ever the next day.  Coincidence?

I have a 2002 Subaru Forrester. Upon my monthly check of fluids, I was shocked to see that there was no cooling fluid in the reservoir. I immediately took it to the shop, where they told me the head gasket was...

Is there any merit to the claim that nitrogen in gasoline has any benefit for cleaning the engine? What's the chemistry behind it? Or is this just the latest gasoline-additive scam? -- David TOM: Hmm. Maybe they're trying to get...

My son has been in Iraq for almost a year. He left his car with us, and it has been sitting in the driveway the whole time. My plan is to sell the car and send the money to my...

In the past six months or so four auto-repair shops that I sometimes use including a Toyota and Subaru dealership have started to heavily promote additives They claim that worth of additives for fuel oil coolant and transmission identified as...

I have a Jeep Grand Cherokee and live in the hot dry Southwest Both my main seal and my transfer-case seal are slowly leaking There are a number of additive products available at the auto-parts store that claim they will...