Dino1956 said:A guy at the dealership advised to every once in a while, to fill my Protege 1.6 DX Auto with High Octane Gas (Premium). He says it helps to prevent Carbon Buildup in EGR Valve. Does this sound right ? What do you guys think ?
jeg0024 said:You can use high octane about one tank every oil change, thats what I do. The higher octane the cleaner(and faster) the gas burns. It will help remove carbon buildup on your injectors and internals as well as get rid of any slight knocking you may have. Plus you get to run your car hard for a tank lol.
Again, I have the 1.6 Engine, Auto Transmission. From what you guys are saying. I had to put Premium in my Cadillac, so I'm use to the slight higher cost. From the above posts, I get the feeling I should not use High Octane ALL the time. That's what the dealership told me. I was at dealership for a CEL code PO402 "EGR Flow Excessive". So I figure there must be some Carbon build up. Of course they suggest taking the Intake Manifold and cleaning it out from there. That's a nice $300. for them. I'm not doing that. And from what I see on here, it could be Carbon stuck in the EGR Valve. I know nothing about cars, only what I read on here and through other sites. Thanks. More input on these subjects is surely welcome.TheMAN said:it is true
in my experience, bad gas and/or low octane gas has caused carbon build up in various engines
on the 2.0 protege engine, it has responded positively on 93 octane... it DOES run better than regular gas... I have looked at the ignition timing myself and the ECU does bump the timing up when you use higher octane gas
Which is a good Injector Cleaner?Kooldino said:You could also use an injector cleaner instead.
StealthWyvern said:So what your saying jeg is that my engine should be pretty samn clean on the insides due to my ass running nothing but 93 for the last 26k miles!
Kooldino said:You could also use an injector cleaner instead.
DaltonsProtege said:Higher Octane gas has more alcohol, which burns hotter. The outcome is that it burns away carbon on the valves, pistons, in the EGR valve, and the 02 sensor. The reason it was suggested to only run it once in a while was because some cars do not respond well to prolonged use of higher octane. Also, pour in tank injector cleaner is basicly useless, take it to Wal-Mart and have TLE do an injection service for $20.
Is it because of the high alcohol content, that some cars don't respond well ? Could it cause Engine trouble ?DaltonsProtege said:Higher Octane gas has more alcohol, which burns hotter. The outcome is that it burns away carbon on the valves, pistons, in the EGR valve, and the 02 sensor. The reason it was suggested to only run it once in a while was because some cars do not respond well to prolonged use of higher octane. Also, pour in tank injector cleaner is basicly useless, take it to Wal-Mart and have TLE do an injection service for $20.
Dino1956 said:Which is a good Injector Cleaner?
patsfan4life said:tahts injector clearer. For Air Intake cleaner I use CRC Throttle Body and Intake Cleaner. Cleans the EGR and inake. works great.