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wdb · 10-07-2010, 02:22 PM

Well well well. This is the first time in any fuel economy forum that I've seen an admission that engines have zones of efficiency. The mantra I've heard so far has been "low RPM in a high gear" and not much else.

I live at the top of a hill, and so I always have a long climb just before getting home; natually this plays havoc with my carefully collected trip MPGs. I've tried going really slow, using low RPMs, and the like, without seeing much difference. On the other hand if I keep my speed high enough to hold 3rd gear and 2500-3000 RPMs, the car seems happier, the MPG loss is a tad less, and as a bonus I get home a little sooner.

10-07-2010, 02:22 PM	#6 (permalink)
wdb lurker's apprentice Join Date: May 2008 Location: the Perimeter Posts: 942 PlainJane - '12 Toyota Tacoma Base 4WD Access Cab 90 day: 20.98 mpg (US) Thanks: 504 Thanked 226 Times in 173 Posts	Well well well. This is the first time in any fuel economy forum that I've seen an admission that engines have zones of efficiency. The mantra I've heard so far has been "low RPM in a high gear" and not much else. I live at the top of a hill, and so I always have a long climb just before getting home; natually this plays havoc with my carefully collected trip MPGs. I've tried going really slow, using low RPMs, and the like, without seeing much difference. On the other hand if I keep my speed high enough to hold 3rd gear and 2500-3000 RPMs, the car seems happier, the MPG loss is a tad less, and as a bonus I get home a little sooner.