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Topic: Gas Mileage 22 vs. 23.5 (Read 7 times) previous topic - next topic
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Gas Mileage 22 vs. 23.5
Yahoo Message Number: 97456
wrote:

Check out Craigslist in Ventura.  There has been a nice looking '88 22 footer with less that 40k on the odometer advertised during the last couple weeks.
--- Also check out the 'Files' section of the message board:

http://tinyurl.com/yp8rjr

I don't know how many of the 'For Sale' ads are still current, but there are 22-footers listed.

Joan
2003 TK has a new home
Re: Gas Mileage 22 vs. 23.5
Reply #1 –
Yahoo Message Number: 97461
"The 23.5 rigs are getting substationally better better mileage ! The figures are surprising."

George

The difference is the result of more efficient fuel injection and
4-speed overdrive transmissions.
 1991 and newer 22' LDs have fuel injection and overdrive transmissions. They are your best choice if choosing a 22' model. The older models, with carburetors, are a bigger maintenance problem with parts and experience mechanics becoming more difficult to find.

The later 23.5' models, built on an E-350, chassis (pre 2003), get even better mileage.
Our 2003 23'5' FL (E-450) gets about 1 1/2 MPG more than the 1983 22' FL that it replaced.
The same floor plan, on an E-350 chassis, should get an additional mile per gallon.
The E-350 models weight less and have a numerically lower rear axle ratio (4.11 vs. the E-450's 4.56) that spins the engine slower at any given speed. They do lack the cargo capacity of the E-450 models and are easy to overload.

Larry
Larry
2003 23.5' Front Lounge, since new.  Previously 1983 22' Front Lounge.
Tow vehicles  2020 Jeep Wrangler Rubicon, 2001 Jeep Cherokee
Photo Collection: Lazy Daze
Re: Gas Mileage 22 vs. 23.5
Reply #2 –
Yahoo Message Number: 97463
Hello Larry...You touched on something we have been wondering about on our rig. We have the old workhorse chevy chassis..85 22 footer with the 350 cid motor. 4 bbl carb of course..My question is what would be my rear end ratio? I have checked my manuals and the Chilton guide that came with our rig but can find nothing on this subject. Any help would be appreciated. Regards John O.
 
Re: Gas Mileage 22 vs. 23.5
Reply #3 –
Yahoo Message Number: 97465
More than likely it's a 4:11 to 1.  I think that's what cam stock on most of the era chassis.