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One thing Seafoam, in the gastank, is good for is to lower the NO gasses just a tad and that might be all it takes to get the car passed smog.
It has been several cases where the CO and HC was well within passing range but the NO just a tad above its limit. A bottle of Seafoam, full tank of Chevron 91 and a hard run on the freeway and the next test,the NO was a couple of 100 ppm lower and enough to pass.
Posts in this Thread:
- Sea Foam, stopsaabn , Sun, 5 Nov 2017 05:50:07
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