Quote:
Originally Posted by brok3n
already get pretty great MPG's (30-36.7)
Coilovers
Disc Hubcaps
Full undertray
Partial block off (fog lights, maybe grill)
I'm hoping to get 45+mpg? Is that unrealistic?
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It's a bit unrealistic if you're not also willing to slow down some. (That's where the single biggest saving is to be found).
Based on 30-36.7 starting point, you're looking for 8-15 mpg, or ~10-50% better fuel economy.
The mods you suggest might be good for a ~5-7% improvement (guesstimate).
Why only "maybe" a partial grille block? Grille openings are sized for a worst-case, high load cooling scenario: full load, towing, with the A/C on. How often do you do that? Progressively block, starting with the upper opening, and
monitor coolant temperature.