Quote:
Originally Posted by Stubby79
I do 50/50 driving, by distance, every day. The 50 in town takes 5x as long as the 50 on the highway, and averages a dozen stop/starts. There is a long hill on the highway to boot. Lighter weight will win every time..............
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Similar to what I was about to post.
That city driving time is a real killer.
Will never make up for it on the highway.
I mean my S10 probably gets 10mpg in the city, and 20 mpg on the hwy.
No improvement in Cd is ever going to tilt the scales back.
In the real world changing out my spark plugs has had the greatest affect.
Therefore if given a third choice to vote on would say "
engine efficiency" is most important.
Going further I's say drivetrain efficiency overall is most important because putting the S10 into 4WD is like throwing out a boat anchor with large chain attached.
In short, everything is important, and the ratios of this or that are moving targets at best.