just broke 40mpg on this tank today!

[zxtuner]

Highest tank milage yet was 622 miles! 42.83 MPG!!!!

This is a bone stock 99 accord with a 2.3 5speed. Only thing I changed was airing up the tires to 42 psi. I think the wonderful weather also played a big part in it. it's been not humid and in the 80s here.

Also is there anyway to verify my claims? I only ask because my average was pretty steady at 39.xxx then this tank it's 42.83? Just seems like a bit to high of a jump for just airing up tires.

[cRiPpLe_rOoStEr]

Airing up the tyres decreases their rolling resistence.

[Daox]

Congrats. I'd say the weather is a good contributor combined with the tires. Perhaps favorable tail winds too?

[redneck]

.

Increasing air pressure will reduce rolling resistance. This can improve
fuel mileage by up to 10%.

You gained 9%.


>

[zxtuner]

There's been more wind prior due to storms rolling through. It's been calm sunny and lower humidity.

Originally Posted by redneck

.

Increasing air pressure will reduce rolling resistance. This can improve
fuel mileage by up to 10%.

You gained 9%.


>

Didn't know you could see that kind of increase from just airing up tires. AWESOME!

Thanks!

[zxtuner]

Originally Posted by Daox

Congrats. I'd say the weather is a good contributor combined with the tires. Perhaps favorable tail winds too?

you know that might be right. I know one trip home from work I averaged 50.4MPG and that is way higher than normal so you might be correct.

[Mustang Dave]

Part of the increase could be due to Summer fuel, which just hit the fuel stations in the last month. I had 6 consecutive fill-ups in the 30.xx MPG range, and Monday morning's fill-up was 32.43 MPG. I was only expecting it to be in the 31's. The weather and seasonal fuel blends make a noticeable difference in MPG to those who would notice it. (ecomodders)
And a belated "Welcome aboard!"

[elhigh]

Your improvement from increased tire pressure is right in line with others' experiences.

Nice results, solid 40s from a midsize. Well done.