Inzane 17

with the higher fuel prices, secrets of MPG from Cummins

Started by 98valk, Sat 17, Apr 2021, 08:41:11

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98valk

this is a very good paper, on how to increase MPG and what lowers it.
mainly for vehicles, however some things apply to motorcycles, such as weather and road surface.  interesting that worn tires provide better mpg than new tires.

https://international.cummins.com/customer-support--secrets-of-fuel-economy--white-paper
1998 Std/Tourer, 2007 DR200SE, 1981 CB900C  10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp

"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798

gordonv

Quote from: 98valk on Sat 17, Apr 2021, 08:41:11
 interesting that worn tires provide better mpg than new tires.

Think train wheels. Smooth flat surfaces. Almost no friction holding you back.
1999 Black with custom paint IS


semo97

Takes awhile to stop that train with steel on steel

CoreyP

Tires can make a big difference but when you are on skinny no stick tires ending up in the trees around some corner, was it worth saving gas? No.

I've never worried about gas mileage on a motorcycle and never will.

98valk

Quote from: gordonv on Sat 17, Apr 2021, 15:43:42
Quote from: 98valk on Sat 17, Apr 2021, 08:41:11
 interesting that worn tires provide better mpg than new tires.

Think train wheels. Smooth flat surfaces. Almost no friction holding you back.


that is not the reason. it is the reason for the road surface. asphalt is the worst, but cheapest for govts to installed which also uses the highest amount of oil product to make. it seems they have been lying about conserving oil except when it applies to citizens.
if the report was read, u would have learned why worn tires increase mpg and also why many vehicles today use larger diameter rims.
1998 Std/Tourer, 2007 DR200SE, 1981 CB900C  10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp

"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798

Rams

Thanks for posting that.   While I somewhat agree that I don't worry much about saving fuel on my bike or trike (at least until I'm already on reserve and 30 miles from the nearest fuel stop), I do burn a lot of diesel fuel transport stuff from point A to B.

I didn't learn much that the last 40 + years hadn't already taught me but, it was a good refresher.   Although, worn tires may get me better mileage, I'm not sure it's worth it when it comes to fuel savings versus traction.

Rams
VRCC# 29981
Learning the majority of life's lessons the hard way.

Every trip is an adventure, enjoy it while it lasts.

98valk

Quote from: Rams on Thu 22, Apr 2021, 08:47:23
Thanks for posting that.   While I somewhat agree that I don't worry much about saving fuel on my bike or trike (at least until I'm already on reserve and 30 miles from the nearest fuel stop), I do burn a lot of diesel fuel transport stuff from point A to B.

I didn't learn much that the last 40 + years hadn't already taught me but, it was a good refresher.   Although, worn tires may get me better mileage, I'm not sure it's worth it when it comes to fuel savings versus traction.

Rams

from the report it is never reporting about a bald tire.
According to Bridgestone, the tire tread accounts for 60–70% of the tires' rolling resistance.  Not only do the tires differ in rolling resistance when new, but as the tread wears, the rolling resistance of the tire changes.A 7/32 tread wear represents~10% reduction in rolling resistance (5% better mpg)compared to a new tire.
1998 Std/Tourer, 2007 DR200SE, 1981 CB900C  10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp

"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798

F6Dave

With my motorcycles I usually don't worry much about fuel economy, however when prices skyrocketed about 10-12 years ago it was noticeable every time I filled up.  I do get concerned when I hit reserve on one of my Valkyries and the nearest town is over 30 miles away!

SPOFF

Interesting, but if gas mileage was a major concern, I'd sell the Valk. My wife's SUV gets better mileage. I will note that on years when gas was $4 to $5, my Valkyrie got parked. I simply couldn't afford $50 for a long ride. My KLR gets 65 mpg and my primary transportation, a Honda PCX scooter, gets over 100.