Question for Michelin Pilot Sport A/S 3+ users
I installed a new set of these, and I noticed that the gas gauge is quite a bit more active; i.e. it speeds towards the "E" at a more rapid pace.
My suspicion was confirmed when I toggled through the OBC and found that I was getting only 25 mpg, a good 2 mpg less when I had my Yokohamas. Is this normal ?? I remember I had the older version of these tires, but didn't notice such a mileage drop. BTW, mine are the 5-rib, 94Y, max pressure 51, which I *believe* are heavy tires. Perhaps that is the reason for the drop in mileage.... |
I have those tires and have had them on several cars. They have all sucked down gas, so not sure whether it's the tires or 6 cylinders and city driving.
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I was just worried something went wrong with my car. I also noticed that my car doesn’t accelerate quite as quick anymore as well. :( :( |
TireRack says that the A/S3+ has relatively good rolling resistance vs. comparable tires. A couple MPG and slower acceleration is either your ass dyno, a change in diameter (if they are meaningfully bigger, you’ll record less distance traveled, and have the car geared up higher), or something coincidentally went wrong on the car.
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do they change from summer to winter gas formulas down your way? Might just be coincidental timing.
The difference between summer- and winter-blend gasoline involves the Reid Vapor Pressure (RVP) of the fuel. ... The US Environmental Protection Agency (EPA) says conventional summer-blend gasoline contains 1.7 percent more energy than winter-blend gas, which is one reason why gas mileage is slightly better in the summer. |
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My new A/S 3+ came with 10/32" of tread, so you may have a point. I brought the wheels to Discount Tire to have the tires mounted, so they didn't have a chance to touch my car and do anything wrong. And if something DID go wrong mechanically, I really wonder what it could be because all I did was jack up the car at all four corners. :dunno: :dunno: |
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I usually glance at my tach needle when I shift, and it seems that it doesn't climb towards redline as quickly. Again, I can't figure out what went wrong mechanically because I didn't even mess with the engine. :dunno: :dunno: |
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