Can taller tires increase highway fuel mileage?
I bought a saturn sc2 for my 100 mile round trip comute to work. Paid only a grand and its probably saved me at least 2g's in gas by now. It gets around 31 mpg highway. The only thing is the overdrive is geared way to low.(manual trans btw) I guess they thought if they put in the correct gear people would get way to great of gas mileage. The car turns 5 grand more rpms than is necesary. Anyway I was wondering if I should by taller tires when I need them. Seems like this would improve the gas mileage. Do you think this would even make a difference?
BTW, My comute is 90% highway.
- boogie_4wheelLv 71 decade agoFavorite Answer
They sure can. Running a taller tire is the same idea as changing out the axle ratio to produce a greater overdrive. Don't expect a huge difference in economy because a tire size is not a drastic change like an axle ratio change. Also try running a narrower tire, less friction. It can have a negative effect for driving in town so take note of it.
Keep in mind that the larger tire will throw your speedometer off slightly but not enough to make a huge difference, BUT, your odometer will be affected as well. SOOOOOO you will show that you went a slightly shorter distance than you actually drove so when your doing the math to figure out you mpg, it will be slightly lower than what your actually getting!
- 4 years ago
Seems have a big turn in a person's life. The external form of a person is ideal in the eyes of the planet when every feature is assembled in flawlessness or very nearly there. Of all of them, height represents an important role.
Height is not just lots is one of the critical standards in plenty of areas: sports, being a part of the security force, wooing someone, obtaining a work or just bolstering one's assurance therefore, if you want to be slightly taller you just have to use this program https://biturl.im/aUMR8 , grow taller 4 Idiots.
The combination of proteins with growth hormones, could certainly lead to a taller stature and this really is what you would study on this book, how you can set this mixture used because this system really work for nearly all people.
- Anonymous1 decade ago
I think they will help if you do highway driving speeds. The mileage sounds terrible though. My wife's 2000 sl1 gets 37 hwy with the automatic transmission. The high rpms might be adjusted though.
Thanks for trying to get us out of Iraq. Since we are there to protect the oil flow, it's a great idea to use less, I think.
- David SLv 41 decade ago
You should over inflate the tires. Most tires have a 48-54psi max, but are usually inflated at 32-36psi. Inflate them to 40-42psi and that should help a little bit, it will make the tires last a bit longer too.
- How do you think about the answers? You can sign in to vote the answer.
- 1 decade ago
The taller tires would raise your final drive gear ratio, but the extra power it takes to turn bigger tires(more unsprung weight) cancels out any potential fuel savings.
- 1 decade ago
it would decrease ur gearing, a little, but not worth the cost of the tires, I doubt u would c ne difference in gas milage
- JJackLv 41 decade ago
No, you need to fix the gears.