Gasmileage

Jan 11, 2007 8 Replies

Bought a 2006 conv in July with the 5 cylinder engine. MPG stinks! Only getting about 14-16 mpg city. Anyone else doing any better?


How many miles on it so far and how are you measuring the mileage?

And the next part of the question is how far do you drive in your average trip? And then where do you live? 5 mile commutes in San Francisco or Pittsburgh might produce worse mileage than a 5 mile commute in Phoenix.

getting about 14-16 mpg city. Anyone else doing any better?

Some basic assumptions here:

Your commute is the 'typical' sort of thing, ~15 miles of mixed highway and city. Other trips are mostly pretty short. Shopping/neighborhood sort of stuff. You are in a northern-tier location burning winter-formulated gasoline. You are likely burning 87 octane 10% ethanol fuel.

Under these conditions, your MPG is pretty damned good. Even if you were burning 93 octane, that would be very good.

My 2.5-liter 5-cyl Volvo XC-70 gets ~18mpg overall-average based on my typical mixed roads driving patterns. If I take a long trip on highways where I can set the cruise-control at ~72mph (65 posted limits around here), that jumps to 28-30mpg. My wife's 3-liter LPT 6 Saab 9.5 averages 14mpg for her typical near-home use. We just took a trip to Washington DC last week (300 mile R/T). We averaged 31mpg including the local driving about in DC. All of the above on 87 octane regular.

Our 99 Eurovan Camper averages 22 mpg on the highway. Around town, ~18mpg. It is a VR6 and driven gently. Lead-foot drivers pay a huge penalty.

Peter Wieck Wyncote, PA

Just goes to show that size does not necessarily equate to good gas mileage. I drive my V-8 powered 1995 Buick Roadmaster on level roads, at legal speeds, and with gradual changes in speed (no rapid acceleration). My overall combined gas mileage since I bought this car new has been at least

22 mpg using 87 octane fuel. It has a 23 gallon tank, and it has always taken me 500 miles or more between fillups (I don't let it get completely empty).

Considering the pathetic gas mileage being offered with most of today's new cars, I think the gas mileage achieved by my Roadmaster is great. Its a "keeper", for sure.

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