'91 20v Mileage

[PeterBergin at aol.com]

I don't know how you guys do it on MPG's?  I have the Lehman chip, and  
always see (before and after the chip), 18-19 in town and 25 at 65 mph and 22 at  
75.  Mileage only changes when I put my winter tires on, up 1.5mpg.  I  have 
had the car since 65k and now have 200k.  I run synthetic Mobile 1  15/50 
usually year round.  I do a lot of 500 mile weekends on the highway  during the 
summer. I get 1.6-1.7 boost on the stock gauge.  No boost leeks,  changed O2 
sensor at 120k (no mph change) and keep it well tuned.  I keep  40 psi in my RE 
950's.
 
Another 2 mpg on the highway would thin my wallet less.
 
Pete