I feel like my Miata is using a lot of fuel. I have been keeping an eye on how far I drive each time I fill up and the litres that go in.
Last lot was 387.4 km for 35.33 litres of fuel. That gives me 9.12 litres per 100km. What makes me wonder is that my other car (twin turbo Legacy) uses the same amount of fuel for the same driving.
I drive a 1989 1.6 with a K&N filter, extractors and a free-flow exhaust. No other modifications as far as I am aware. Almost all of my driving is open road and I rev the engine to about 4 most of the gear changes. Cruise just under the 110 km mark (about 3'400 rpm) I always use 95 octane.
The spark plugs have been changes, I've fitted new tyres and had 2 wheel alignments. and the car has been serviced twice since I purchased it in February.
Fuel usage has always been higher than I was expecting when I purchased the car 7.8 litres per 100km.
Any thoughts or suggestions before my mechanic gets a free reign and spends all my money chasing a problem that might not even exist.
Thanks for your help.
Chris
(sorry about the long post)
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