I must say I was already impressed with what SSM 17542 did to the car. Easy start, nice idle, no stalls, no sometimes cold weather warmups hiccups. But previously on long trips between Waco and Dallas I'd average high 18's mpg, which is good for the power the car is making. Made my first road trip today with the new stuff and this time averaged 22.7 mpg on that tank of gas. I was surprised and pleased (of course it didn't please me enough to get over that damn ticket I got also 80 in a 55).
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