That is pretty good mileage for Highlander. My wife has a 05 Highlander
> Limited FWD and it never gets more than 21 mpg. It usually gets around 18 of
> mix driving in Southern Orange Couty, CA. The 20 mpg was achieved during our
> trip to Phoenix between Xmas and New Year 3 months ago. The information
> display in that car never tells you the truth about the gas mileage
> consumption. It always shows that we are getting around 22 mpg and in fact
> we only get 19 from it. The speed limit is 75 mph on I-10 and people usually
> drive minimum 85 mph on I-10 between LA and Phoenix. Even though there is
> nothing but desert between LA and Phoenix, the road is not flat, either. >
> I also niticed that Toyota cars get pretty bad gas mileage during cold rainy
> day. My 99 Sienna usually gets 19 in mixed driving, but it only gets 16 or
> less in cold rainy days.
I noticed maybe a 10% drop in economy from summer to winter, if even that. Of course, mine are all '80's cars...
>> It also depends what state mandates the gasoline formulation, IMHO. My
>> Highlander, here in Northern California runs low 20's on highway. In > Idaho,
>> Washington or Oregon I run about 10% better. I probably drive a bit hard > to
>> get best mileage but In summer I am over 17 in town and about 21 on > highway
>> with V-6 AWD. about 23 up north
>> Ron
>>
>>