Fuel Mileage - Page 2
 

Fuel Mileage

Started by TomC, August 22, 2018, 06:30:11 AM

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buswarrior

Quote from: neoneddy on August 22, 2018, 09:54:34 AM
@buswarrior Well my thought is, these engines are not as efficient at all RPM ranges, So I'm going to experiment with it more.   

Or I'm going to install one of these http://www.greenshieldsproject.com/about

You're already around 1550 rpm when you change up from 3rd... not far away from "the range"

Find the fuel curve graph for your engine, you'll see a much gentler curve than some modern engines, the "efficient rpm range" is a relative thing, not critical like some Cats were as the emissions came on...

Engines are bound by their vintage. You get what they got.

Price out your obsession... how much time are you thinking about how much fuel money?

Happy coaching!
Buswarrior
Frozen North, Greater Toronto Area
new project: 1995 MCI 102D3, Cat 3176b, Eaton Autoshift

neoneddy

QuotePrice out your obsession... how much time are you thinking about how much fuel money?

Quite a bit, but I'm hoping to put 3-4k miles on this every year. The different in cost is $400 from 5 -> 6 mpg at current prices.    That's the cost of a trip or two.

Raising hell in Elk River, MN

1982 MCI MC9

6V92 / 4 Speed Auto (HT740) Video Build Log - Bus Conversion & RV Solar company we now started thanks to our Bus

belfert

Quote from: neoneddy on August 22, 2018, 09:54:34 AM
@buswarrior Well my thought is, these engines are not as efficient at all RPM ranges, So I'm going to experiment with it more.   

Or I'm going to install one of these http://www.greenshieldsproject.com/about

If that Greenshield could truly increase mileage by 10% to 20% why wouldn't a school bus manufacturer already be doing that?  Any manufacturer that could deliver 10% to 20% fuel savings would increase sales substantially.
Brian Elfert - 1995 Dina Viaggio 1000 Series 60/B500 - 75% done but usable - Minneapolis, MN

luvrbus

Quote from: belfert on August 23, 2018, 07:37:51 AM
If that Greenshield could truly increase mileage by 10% to 20% why wouldn't a school bus manufacturer already be doing that?  Any manufacturer that could deliver 10% to 20% fuel savings would increase sales substantially.

If the school bus manufacture thought they could get a 20 % better mileage they would have redesign their buses to be more areo  dynamic,they try and do it with new engines designs.with that gimzo what is 20% increase of 5 mpg ? nothing   
Life is short drink the good wine first

buswarrior

Snake oil.

A path would have already been beaten and paved to their door, if this worked.

20% off the First Student fuel bill, fleet wide? That ain't chump change, baby!

That guy is making money by duping investors and the taxman.

Happy coaching!
Buswarrior
Frozen North, Greater Toronto Area
new project: 1995 MCI 102D3, Cat 3176b, Eaton Autoshift

luvrbus

The guy is looking in the wrong for fuel mileage he needs to look no farther than his right foot,2 things a Detroit will do, that is use more fuel and more oil at higher rpm   
Life is short drink the good wine first