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I constantly read how this additive is the favorite of many bitog members. Is there any downside to this ingredient? Why don't all mfc use it?

How prevalent are warranty denials for using non recommended oils? For instance, there is a current thread going on, see below, where a Prius owner is being offered a maintenance program by the dealership where conventional, non-0w20, because 0w20 has to be a blend or synthetic, changed out...

In recent years I've become more of an "mpg, and keep my car running right" guy versus my "horsepower, 0-60, how does it take a corner quickest" days. I would consider myself as still being a car enthusiast. Many others don't. Same goes for oil. Many here seem to get on other members who have...

In a recent discussion a bitog member discussed now having to go to Firestone for his OC due to unforseen reasons. So I got to thinking and came up with a few benefits of doing so. I will use Firestone as the chain example. Using a chain store isnt bad if you trust them. Yes you can get...

I have read on countless forums how people employ the "Italian Tune-up" to blow deposits out the tail pipe. I have also read how high Calcium additives in certain motor oils may contribute to pre ignition while in low RPM/high load situations, which may also be affected by oil dilution. Wouldn't...

Hello all, I will be using Castrol's GTX Magnatec Full Synthetic 5w20 now that my service agreement has run its course. My question is how is this oil different from Edge 5w20. Over thinking?

Hello all. Long time reader here with an inquiry. My Sonata 2.4 4-cylinder GDi has just finished its free maintenance program. I work from home so only put 8-10k miles a year, but more importantly, l short trip the heck out of it and my driving is 85% city. My warranty allows 7500 miles for...