Is it the batteries, ethanol, or need of a tune-up?
#1
Is it the batteries, ethanol, or need of a tune-up?
My 2003 HCH has had fairly consistant mileage until recently. However, I've noticed that my FE has dropped from 43 to about 40. My car is 4 years old next month and has 99k miles. I'm wondering which factor is causing the drop in fuel efficiency:
-- The fact that ethanol has replaced MBTE
-- Are the batteries wearing out?
-- Or is it just in need of a tune-up?
Technically, it shouldn't need the mega tune-up for another 6k miles, but I'd do it early if that's the problem.
Any ideas?
-- The fact that ethanol has replaced MBTE
-- Are the batteries wearing out?
-- Or is it just in need of a tune-up?
Technically, it shouldn't need the mega tune-up for another 6k miles, but I'd do it early if that's the problem.
Any ideas?
#2
Re: Is it the batteries, ethanol, or need of a tune-up?
Well, technically you should see about a 3% drop in mpg with ethanol over regular. I don't know about regular with MTBE added. 3% of 43 mpg is a little over 1 mpg.
I've been running regular instead of E10 the last couple of tanks to see if I can notice the mileage difference. So far, I can't tell the difference, but there are so many variables involved that I doubt I'll be able to correlate a difference.
I've been running regular instead of E10 the last couple of tanks to see if I can notice the mileage difference. So far, I can't tell the difference, but there are so many variables involved that I doubt I'll be able to correlate a difference.
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