Have my 2004 Accord EX 4i in for a 40k mile service, dealer calls and says there's a little buildup on the injectors, do I want to spend 0 to get the injector flush? (hey, they sell this car on a 100k mile "no tuneup" policy) I usually let the dealer screw me around for modest stuff, but is this reasonable or competely bogus? I know I asked online a couple of years ago when my Acura dealer tried to sell me that flush on every service, sight-unseen, and the consensus seemed to be it might make sense around 80k to 100k miles, but not sooner. Anyway, those friggin' tiny back brakes were down below 2mm so I told them to go ahead on those, so I wasn't in the mood for more BS. Any advice on that injector flush? FWIW, I use almost exclusively Chevron gas. Thanks. J.