Originally Posted By: ffracer
Originally Posted By: itguy08
Originally Posted By: ffracer
The additives are what make it better or not. If you keep a car past 100k, the EPA minimum is not enough. Use a top tier or similar fuel (BP, Sunoco, Gulf, etc.). Or use dosed fuel additives like Technron or Redline with any fuel.
If you don't keep a car that long. Doesn't matter to you.
I call horse pokey on this one. I typically buy the cheapest gas I can find. No name, named, shady stations, well lit stations, whatever. Have been doing this since I got my first car in 1992.
First car I sent it to the junkyard with 175k on it. Engine started every time, ran 100%. The body was rusting away.
Next car I traded with 75k on it and no issues there.
3rd car went to 98k with no issues
Wife's car has 106k and no engine issues and she does the same thing. When I had the intake manifold off (it's an Escape and the IM gaskets needed replacing which is a common issue with the Ford 3.0) there was little carbon build up.
Any gas will be fine for the life of your car. Unless you have some other issue (bad PCV, excessive blowby, etc) your valves will stay clean. Unless you like spending more $$ on marketing or additives.
Top Tier is nothing more than a marketing group to get you to buy their gas.
In your opinion. Depends a lot on what you have and how you drive it and what you used. So, you have nothing to show for where you bought fuel, but make gross generalizations. did you look at the valves or the injectors? Have you measured anything or is this seat of the pants?
In both mfg testing (look at SAE papers) and fleet use (I have personal experience as do many others), there are plenty of facts from actual testing to back up the need for more additives. No oil companies sponsored research either.
Pffffffffft, don't let facts get in the way of a strong opinion