Do small front tires save fuel?
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Fleet Mechanic
Joined: May 2001
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From: Cupertino
Do small front tires save fuel?
A buddy told me to put small tires on the front of the truck. So it points downhill. It makes it want to roll forward on its own and saves fuel on the freeways.
Is it true?
Is it true?
Fleet Owner
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From: Mi'kma'ki
Skinny tires help fuel economy by lowering the rolling resistance.Shorter tires,though they may lower the gear ratio,they also lower the truck,which means less air turbulence goes under where it's worse aerodynamically.
I wouldn't be surprised if your buddy did see an mpg increase by putting on smaller tires,even if just up front,especially on a truck,for these reasons.Putting shorter tires on the front so the truck points downhill,doesn't mean the vehicle is constantly under a gravitational pull however lol.
This is general automotive though and probably should of been put over there,rather than here in NON auto.
I wouldn't be surprised if your buddy did see an mpg increase by putting on smaller tires,even if just up front,especially on a truck,for these reasons.Putting shorter tires on the front so the truck points downhill,doesn't mean the vehicle is constantly under a gravitational pull however lol.
This is general automotive though and probably should of been put over there,rather than here in NON auto.
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Fleet Mechanic
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From: Cupertino
Well, I put the big tires on the rear. Jacked it up 2.5" in back. My driveway has a bit of uphill pitch and when I parked it and forgot the ebrake the thing would roll backwards. Now the truck is level in the driveway but still rolls back. Guess I'll try more air in the rear tires.
I will post up highway mileage as soon as I run a couple of tankfuls through it.
Do the tires affect odometer and speedometer? Seems like everybody is flying by when I do 65 now.
I will post up highway mileage as soon as I run a couple of tankfuls through it.
Do the tires affect odometer and speedometer? Seems like everybody is flying by when I do 65 now.
Fleet Owner
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From: Mi'kma'ki
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From: very South Texas
this is so OLD... I remember the old guys at the gas station talking about this very subject... LIKE 1962....
right along with Chrome Muffler bearings or Blinker Fluid....Summer Air and Winter Air for tires.
with the long history of the gov-ment demanding better fuel mileage... so it must be TRUE.. and the auto designers discarded it...
right along with Chrome Muffler bearings or Blinker Fluid....Summer Air and Winter Air for tires.
with the long history of the gov-ment demanding better fuel mileage... so it must be TRUE.. and the auto designers discarded it...
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Fleet Mechanic
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From: Cupertino
My buddy said that is the reason why dragsters go so fast. Big tires on the rear, bicycle wheels on front.
He said he had a top fuel dragster. When he let off the brake at the starting line it would role to a 11-second 125-mph run- with the engine off.
He said he had a top fuel dragster. When he let off the brake at the starting line it would role to a 11-second 125-mph run- with the engine off.
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