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Many years ago I read an article that discussed that problem. The article said that it takes 48 hours after the filling, for all the crap to settle back to the bottom of the tank.
Great I don't see how we are going to know if 48 hours has passed since the last refill at the local stations.
Great I don't see how we are going to know if 48 hours has passed since the last refill at the local stations.
Well, if I drove by my local station and saw a tanker unloading gas, I would wait for 48 hours before filling up at that particular station.
Of course, when you pull into a station you don't know if the delivery truck just left the station or if it's been a week since he was there.
Point is, if you see a delivery truck, wait at least 48 hours to fill up there, or go to another station. If you have any doubt, just ask the person behind the counter when they last had a delivery. If it's less than 48 hours, move on. Even if it's only been 24 hours since he was there, there will be less sediment in the gas, than if he was there loading when you fill up.
The auto manufacturers don't like to spend money where it's not needed. If they thought the "filters" at the gas stations were 100% effective(or even 90%), they wouldn't put a filter on your car.
I generaly use 91 because I can't get more than 91 where I live. I have used 87 on rare occasions when I was low on fuel and I can't find anything else. When i did, it seemed to work ok.
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.