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#1 |
Slacker Extraordinaire
Join Date: Oct 2003
Location: Reno, NV
Posts: 2,818
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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....
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2016 Toyota Sienna SE - hers 2002 BMW 325i - his 1994 Chevrolet Silverado K1500 Sportside Z71 - whoevers vehicle is in the shop 2009 Harley-Davidson Sportster XL883 Low (Vivid Black) - his 2007 Harley-Davidson Sportster XL883 Low (Pearl White) - hers 2011 Tao Tao 50 - whoevers bike is in the shop 2007 Reinell 186 FNS - the dog's 1995 Fleetwood Flair 27R - EVERYBODY'S ! |
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#2 |
dogged
Join Date: Dec 2003
Carmudgeonly Ride: '17 M240i; '17 718 Boxster S; '16 X5 50i MSport
Posts: 7,041
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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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#3 | |
Slacker Extraordinaire
Join Date: Oct 2003
Location: Reno, NV
Posts: 2,818
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Quote:
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. ![]() ![]()
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2016 Toyota Sienna SE - hers 2002 BMW 325i - his 1994 Chevrolet Silverado K1500 Sportside Z71 - whoevers vehicle is in the shop 2009 Harley-Davidson Sportster XL883 Low (Vivid Black) - his 2007 Harley-Davidson Sportster XL883 Low (Pearl White) - hers 2011 Tao Tao 50 - whoevers bike is in the shop 2007 Reinell 186 FNS - the dog's 1995 Fleetwood Flair 27R - EVERYBODY'S ! |
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#4 |
Old Fart
Join Date: Oct 2003
Location: Bethesda, MD
Posts: 8,877
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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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2006 GMC Sierra 2500HD 4WD LBZ/Allison 2002 BMW M3 1999 323i GTS2 1995 M3 S50B32, S6S420G, 3.91 1990 325is 1989 M3 Hers: 1988 325iX 1996 911 Turbo ![]() |
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#5 |
Alphanumeric
Join Date: Aug 2005
Carmudgeonly Ride: 981S, 535i, macanurbo
Posts: 7,915
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This. Either some slight thing, perhaps you had really old tires which made more noise & vibration adding to perception of speed. More likely, if you are observing a definite effect, then something is going wrong. Assuming you got the same size of course.
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#6 |
Hello.
Join Date: Mar 2004
Carmudgeonly Ride: '03 325xiT, '11 135i C, '13 X5 n55
Location: Downingtown, PA
Posts: 3,215
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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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Josh (PA) - '11 135i convertible '13 X5 n55 '03 325 wagon |
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#7 |
Mugwump
Join Date: Oct 2003
Carmudgeonly Ride: E46 330i, Chevy Colorado, Tesla Model 3
Location: NY
Posts: 16,830
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#8 |
Chief title editor
Join Date: Oct 2003
Posts: 23,123
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I'd trust hand done math before an OBC reading. Those things aren't exactly consistently consistent.
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OH NOES!!!!!1 MY CAR HAS T3H UND3R5T33R5555!!!!!!1oneone!!!!11 Team WTF?! What are you gonna do? ![]() |
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#9 | |
Slacker Extraordinaire
Join Date: Oct 2003
Location: Reno, NV
Posts: 2,818
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Quote:
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. ![]() ![]()
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2016 Toyota Sienna SE - hers 2002 BMW 325i - his 1994 Chevrolet Silverado K1500 Sportside Z71 - whoevers vehicle is in the shop 2009 Harley-Davidson Sportster XL883 Low (Vivid Black) - his 2007 Harley-Davidson Sportster XL883 Low (Pearl White) - hers 2011 Tao Tao 50 - whoevers bike is in the shop 2007 Reinell 186 FNS - the dog's 1995 Fleetwood Flair 27R - EVERYBODY'S ! |
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#10 | |
Slacker Extraordinaire
Join Date: Oct 2003
Location: Reno, NV
Posts: 2,818
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Quote:
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. ![]() ![]()
__________________
2016 Toyota Sienna SE - hers 2002 BMW 325i - his 1994 Chevrolet Silverado K1500 Sportside Z71 - whoevers vehicle is in the shop 2009 Harley-Davidson Sportster XL883 Low (Vivid Black) - his 2007 Harley-Davidson Sportster XL883 Low (Pearl White) - hers 2011 Tao Tao 50 - whoevers bike is in the shop 2007 Reinell 186 FNS - the dog's 1995 Fleetwood Flair 27R - EVERYBODY'S ! |
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