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Well, I did the seafoam thing today. But, I kind of didn't completely follow directions. I first sucked one cup of distilled water into the intake. Then, I did 1/3 cup of the seafoam, let it stall, sit for 20 minutes, then started it up, and revved it a bit, not super high RPM'S but it did smoke some, Then, I should have driven it hard at that point. But, I sucked another 1/3 cup of seafoam into the intake, put 1/2 can into the gas tank with 9-10 gallons of gas, and then took it for a hard drive. I put it into second gear (auto) and it did smoke quite a bit, but not as much as I expected.
It does run a little better, but still has a slight rough idle. I did notice a difference when I put it in the gas. But, that could be from the fact that it is a little more volatile, or boost the octane up a bit.
Really, I have not driven it enough to tell how much difference yet. And the real reason for this is still chasing my rough idle, and crap gas mileage. Do the auto 240's all get that much worse mileage than the manual cars? My bro gets WAY better mileage w/ his 89 240 with manual trans.
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