This makes part of what you went through at least believable, however, I would like to know what they cleaned on top of the engine that cost so much...
(Snipped from the web): I talked to my mechanic friend about the trick of cleaning the throttle body for better engine performance. He gave me an education about this topic.
The throttle body gets dirty from the engine gas recirculation. There is a small hose that sends post combustion gases into the intake, I think for emission reason. This post combustion gas dirties the throttle body and the rest of the intake manifold. So when you clean only the throttle body, you solve only part of the problem. He said the old fashion carburetor cleaners also cleans the throttle body, and the rest of the deposits on the intake manifold.
So we pumped most of a can of gumout carb cleaner into the intake manifold. I also filled the tank with 89 octane gas. I was cheap so I always used the 87 octane gas. The combination of the two did wonders. The car got 200 miles for half a tank of 89 octane gas. Previously, I would get 160-ish mile on half a tank. I can't say how much either contributed to this drastic increase in mileage.
I did not lead foot the car much with this tank. I was interested in finding how thing effected the mileage. The next tankful, I will lead foot things.
Moral of the story: a bottle of gumout carb cleaner cost $2.00, and it might save you the work of removing and cleaning the throttle body. When you send the carb cleaner into the air intake, maker certain the little red straw is firmly attached. Mine shot into the intake. luckily, it was caught by throttle body.
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Nipped from the web
Date: 2007-09-11 06:40 pm (UTC)(Snipped from the web):
I talked to my mechanic friend about the trick of cleaning the throttle body for better engine performance. He gave me an education about this topic.
The throttle body gets dirty from the engine gas recirculation. There is a small hose that sends post combustion gases into the intake, I think for emission reason. This post combustion gas dirties the throttle body and the rest of the intake manifold. So when you clean only the throttle body, you solve only part of the problem. He said the old fashion carburetor cleaners also cleans the throttle body, and the rest of the deposits on the intake manifold.
So we pumped most of a can of gumout carb cleaner into the intake manifold. I also filled the tank with 89 octane gas. I was cheap so I always used the 87 octane gas. The combination of the two did wonders. The car got 200 miles for half a tank of 89 octane gas. Previously, I would get 160-ish mile on half a tank. I can't say how much either contributed to this drastic increase in mileage.
I did not lead foot the car much with this tank. I was interested in finding how thing effected the mileage. The next tankful, I will lead foot things.
Moral of the story: a bottle of gumout carb cleaner cost $2.00, and it might save you the work of removing and cleaning the throttle body. When you send the carb cleaner into the air intake, maker certain the little red straw is firmly attached. Mine shot into the intake. luckily, it was caught by throttle body.