Excellent fuel economy on a hot day

[sneeks]

I went on a 200 mile drive on Saturday, Glasgow to Lochgilphead and back. My 172 returned the best economy yet despite me not driving like my grandad 45mpg over the entire journey. Temperature outside was 18 degrees c on the sat. On sunday and monday the temp was far lower and the car immediately fell back to the usual 34-35mpg. In total my tank of Optimax lasted 410 miles over the 3 days, had I kept driving on Saturday then I expect it would have lasted the trip computers estimated 490 miles which is 160 miles more than ever before.

I'm sure you'll all sleep better having read this.

 

[clio__chris]

cool beans!

cold air = more dense = more air = more fuel = worse mpg

 

[sneeks]

cool beans!

cold air = more dense = more air = more fuel = worse mpg

Indeed but I was surprised at how much the mpg improved. Now all I need is for the temp in Glasgow to remain close to 18c all year round and things will be great

 

[steven.m]

I got 41mpg on a trip to Fort William form Stirling on Sunday, sitting at circa 60-65mph, then my GF was caning it back down by Tyndrum. I usually get 35-37mpg on my daily commute between Buchlyvie and Glasgow, sometimes less than that depending on traffic. All in a 2001 1.2 16v.