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So I have just at 390 miles on the car, or about 1 tank. I know new engines are tight, but so far, I have to say the mileage is not even close to the sticker. I have been following the break in procedures and haven't revved the engine over 4k, no jackrabbit starts....haven't really driven more than 5mph over posted speeds and no extended idling time. About 70% of the driving has been highway, not stop and go. So far, hand calculated, I am averaging 14.9MPG.
Is this a known issue with Subaru that the engines show poor MPG during break in? I get it, but less than 15 seems on the low side. The instant calculator (not accurate I know) seems to range from 17 to mid 20's....with a few high and low spikes. I have 2 friends with Ascents and both are above 25MPG on average.
Is this a known issue with Subaru that the engines show poor MPG during break in? I get it, but less than 15 seems on the low side. The instant calculator (not accurate I know) seems to range from 17 to mid 20's....with a few high and low spikes. I have 2 friends with Ascents and both are above 25MPG on average.