that flat spot I was having at WOT in S mode seems to have disappeared....
07-24-2007, 06:46 AM
#1
AudiWorld Super User
Thread Starter
Join Date: Mar 2000
Posts: 24,309
Likes: 0
Received 0 Likes
on
0 Posts
that flat spot I was having at WOT in S mode seems to have disappeared....
...I'm thinking it may have been a bad tank of gas. My wife and I both filled up at a Shell station we don't usually use, and both cars developed problems....RS4 developed the power drop I described previously, and the 750i (with only 13k miles on it) had the in-tank fuel pump die 1 day after filling up. Coincidence perhaps, but I've switched to a different Shell station for the last couple of tanks, and now the car is running fine.
07-24-2007, 07:57 AM
#4
AudiWorld Senior Member
let me share my reasons why I say that.
I know Shell has recently started to push their v-power or whatever and they are probably on par with Chevron now. So my info might be slightly out of date.
I talked to a guy who worked for a company that sells fuel additives. Needless to say they have done plenty of testing into different fuels. A) he told chevron was always above all others in tests B) since his company basically sells whats techron is in a concentrated form you can buy at the auto store. He said techron was so good that it has more additives in it then a single bottle of the stuff he sells. Needless to say their business is struggling to find new ways to innovate, because if you use Chevron you have no need to buy their stuff.
I can't (and won't) go into who he was or where he worked (lets not even guess) but I would just say this isn't just some guy I bumped into, and I have very good reasons to believe what he tells me.
So I've always used Chevron since and have never had any problems. Thats not to say others have not caught up to Chevron.
I talked to a guy who worked for a company that sells fuel additives. Needless to say they have done plenty of testing into different fuels. A) he told chevron was always above all others in tests B) since his company basically sells whats techron is in a concentrated form you can buy at the auto store. He said techron was so good that it has more additives in it then a single bottle of the stuff he sells. Needless to say their business is struggling to find new ways to innovate, because if you use Chevron you have no need to buy their stuff.
I can't (and won't) go into who he was or where he worked (lets not even guess) but I would just say this isn't just some guy I bumped into, and I have very good reasons to believe what he tells me.
So I've always used Chevron since and have never had any problems. Thats not to say others have not caught up to Chevron.
07-24-2007, 10:00 AM
#5
AudiWorld Super User
Thread Starter
Join Date: Mar 2000
Posts: 24,309
Likes: 0
Received 0 Likes
on
0 Posts
not doubting that...but all the additives in the world won't help a contaminated fuel source.
obviously problems can occur at the local station level that the manufacturers can't really do anything about. IIRC, state laws require annual testing of fuel quality for filling stations. so what happens if a tank gets contaminated 11 months before the next scheduled test? bad gas for everyone.
07-24-2007, 10:20 AM
#6
I think you're right, Bob.
I noticed the same when I was driving down to FL and back to New England, and with the downpipes and non-res catbacks and an open window I was able to hear pinging for a second from time to time when I'd get on the throttle. As soon as I got back to my area, with gas station that I normally use, it went away.
