|
 Dear
Terry,
The government changed required additives in gasoline
this winter and I got five miles less per gallon
from my Toyota Highlander Hybrid -- from 26 to
21 miles per gallon. Toyota said there was nothing
they could do about it. Will summer mix go back
up to giving me my usual 30 to 32 mpg?
-- Jgrebert
 Dear
Jgrebert,
In an effort to reduce emissions, the EPA, Environmental
Protection Agency, mandates that the formulation
of gasoline during winter months be changed because
of colder operating temperatures.
Starting in late spring, refiners
go back to what is called the "summer formula.''
Many drivers, especially hybrid owners, report
decreases in fuel mileage similar to yours while
using winter formula gas. Using gasoline with
a higher ethanol mixture will also cause a decrease
in mileage.
But once the pumps start delivering
summer formula gasoline, your mileage should bounce
back. Check with your usual gas station to find
out if they've starting getting the summer mixture.
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