Post#18 » Tue Jun 20, 2017 9:10 am
Try to never drive over 45mph, you may get nearly 20 mpg.
I get 14.7mpg (US) in the wife's OM617a powered 230G cabrio on 35" tires (4 spd manual, 5.33:1 axles) when cruising 65mph with frequent WOT bursts up to redline/4400RPM, it's quite challenging to not use the full ~200hp afforded by the new IP and turbo, If I never exceed 3500rpm the economy figures easily reach 18-19mpg.
Manual transmission with overdrive should yield a 1-2 MPG improvement in fuel economy too, huge tires or "fast axles" (4.36:1 ratio) would do the same thing, but if you are at stock OM617a power levels the G may loose too much 'drivability'.
IG: #traildustrestoration