Well now that its got cold again Im not using my ac unit I decided to
run another mpg test. My last fillup cost 65.00 dollars (yikes).



I ran out to mammoth (350 miles) at 2k rpms with the h2's and no ac. I had no wind and it is mostly level road. I got 17.6 mpg.



On the way home I reduced the rpms to 1825. I ran with no ac and it was level with no wind. I got 20.22 mpg.



Stock tires at 2k/no ac got me 20.3 mpg.



So it seems the increased speed 12.8% faster(wind resistance) with the h2's means you have to lower the rpms to compensate.



I got plenty of dirty looks and people passing and cutting back in early for going so slow on a 2 lane.http://www.dieselplace.com/forum/smileys/smiley7.gif




Edited by: problemchild

The road back from mammoth is 75% or more downhill. That might
have something to do with it. Sure can be a nasty drive with
traffic coming back. People get pissed with the slow truckers,
and pass when they ought not to.



How was it up there? I heard they got dumped on with 2 feet of
snow...I was just up there a month ago for the mountain bike nationals.



Have you changed your tire size in the computer to accomodate the larger tires?



Ive managed to get 22 mpg at 75+ with the stock tires.