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i meant to mention before that your compression #s are fine. they show the engine is marginally worn but will still last forever if maintained properly, and with no noticeable loss of power. i know guys driving around with 120 psi on all cylinders and they're still getting good mileage. their cars just lack some zip, is all.
next question, is your odometer or trip meter accurate? you can compare it against GPS, or the old fashioned method of taking note when you pass by km or mile markers on highways.
also, if your tires are larger than stock your speedo and odo will be off. sounds like yours are probably stock but i want to rule out as much as possible.
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