Re: 199 MPG average?

[Matt Haas <mhaas@xxxxxxx>]

My 68 which has a 232 and a manual transmission gets about 25-26 on the 
highway and a little under 20 around town. I haven't been able to drive the 
wagon around enough to find out what it gets (it has a 199 and an 
automatic) but I think the last time it was on highway for a long trip it 
got around 16. I don't know if the heat riser valve was working right at 
that time or not.

Speaking of the heat riser valve, you may want to check your to see if it's 
working. If it's not, it may be stuck closed (or partially closed) and it 
will kill your gas mileage. If you can't move it by hand, it's worth 
investigating (you'll need to drop the head pipe or remove the manifolds to 
see what's going on). If it's stuck, you can have it cut out and install 
pipe plugs where it goes through the exhaust manifold. I did that on my 68 
and I don't have any cold driveability problems with it. I also put an 
electronic ignition on it at the same time and I picked up 5 mpg between 
these two changes.

Matt

At 10:05 AM 7/29/2005 -0400, you wrote:
> whats your average miles per gallon achieved with your 199 or 232 I6? I 
> haven't been driving mine long..and I drive it a little hard but the MPG 
> seems too low and I'd like to compare.  I think I'm getting about 
> 12mpg..that included a 15mile road race with a 74 cutlass so normally prob 
> about 13-14mpg. thanks
>
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mhaas@xxxxxxx
Cincinnati, OH
http://www.mattsoldcars.com
1967 Rambler American wagon
1968 Rambler American sedan
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