2008 Buick Enclave Long Term Road Test


2008 Buick Enclave: Oregon Holiday Trip, Home Again

January 01, 2008

We're done. The 2008 Buick Enclave is home and sitting unloaded in our driveway. It would be an understatement to say that we're glad to be home.

Since the final leg from the San Francisco Bay area to where I live in Orange County is mostly straight and flat, I decided to see just how many MPG I could squeeze out of the Enclave...

The rules were simple: judicious use of cruise control and a set-point equal to the posted speed limit (mostly 65, with some stretches of 55 and 70).

It wasn't easy. Even though we were running the legal limit, we were at least 10 mph below the prevailingf low of traffic much of the time. Trucks and folks pulling trailers can only go 55 in Cali, so we weren't the slowest. Still, it felt like we were crawling. "Are you really gonna do this all the way home?" asked my wife, "We are a rolling chicane!"

Yeah, I stuck with it.Our average speed for the day was 58.2 mph. Upon arrival at my home gas station, we'd run 427.2 miles. The Enclave's onboard meter said it had used 17.6 gallons for 24.2mpg- the best fuel economy of the trip so far. But the gas pump shut off at just 16.69 gallons. That calculates to 25.6 mpg. Wow!

I'm not sure I believe it.I'll refill once more near the office on Wednesday to see if a missing gallon shows up.

Driving the same leg on the trip up, we ran with the pack, averaged 68.5 mph and burned fuel at a rate of 21.2 mpg - using 4 gallons and $13.37 more than we did on today's leg.

Happy New Year!

Dan Edmunds, Director of Vehicle Testing @ 8,811 miles

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