My ScanGauge has given me a lot of insight into the MPG of my smart.
(1) Distance: On short trips, the MPG is always lower. I assume it's because the engine is cold and does not do as well. The return trip always gets higher MPG.
(2) Temperature: On hot days, the MPG is always better than on really cold days.
(3) Speed Of Drive and Type Of Drive: I'm not sure of the exact point, somewhere between 40 to 60 MPH, the MPG is the highest. The stop and go traffic of LA really takes down the MPG, no surprise there.
Bob's right. For the best MPGs, fifth gear with as few RPMs as you need to get where you're going. Get up to gear 5 pretty quick, and around 40-45mph you'll get the best power/MPG combination for flat roads. Need to go up an average city type hill? Gradually get up to 50mph so you can take it in 5th gear, and accept the slowdown to 40-45mph. Assuming your speed limits allow it. And traffic behind you - don't hypermile in traffic, it just makes people mad enough to go around you and slam on the brakes, causing you to change speed.
I'll have to wait until January to try this, but I want to take my smart up the coast along Pacific Coast Highway; partly for the ride and partly to test speeds vs. MPG.
The bad part is that in the LA Area, people will want to kill you if you drive 40 MPH in a 45 MPH zone. They just don't understand it's in the best interest of science!
Does anyone know how much difference the octane makes? The highest we can get in California is 91, but I noticed last week that 93 is still selling in Louisiana and Mississippi. I haven't had the opportunity to drive my Smart there, but the best I can get out here is 38 MPG, both on a long trip and locally.
You should be using 93 if at all possible... it's what's suggested for the engine by the manufacturer. You might see an increase in mileage but you'll defiantly get more life out of your engine.
Edit... I'd love to average 38... always been in the low 30's here.... damn ethanol...
I'll have to wait until January to try this, but I want to take my smart up the coast along Pacific Coast Highway; partly for the ride and partly to test speeds vs. MPG.
The bad part is that in the LA Area, people will want to kill you if you drive 40 MPH in a 45 MPH zone. They just don't understand it's in the best interest of science!
Bob Diaz
You're too kind, Bob. In my experience in California, you get run off the freeway if you do anything less than 75 in the 70 zone. We're also having problems with people driving 60 in a 35 zone near my house. A couple of bad collisions in the last two weeks and idiots are still speeding down that road.
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