NISSAN ALTIMA ENGINE POOR MILEAGE

Checked Mpg And Found To Be Getting Only Seven Mpg. Plugs And One Coil Have Been Changed, But No Change.

I Recently Moved My Car Overseas (the Middle East). Back In The States It Was Getting Around 30 Mpg. The Gas Here Is Different And I Have...

I Used To Get Close To 30 Mpg Now Maybe 18-20 The Highway, In Town Maybe 15 Or Less. I Have A Mpg Indicator That Fluctuates Quite A Bit On...

Went From 31 Highway, To 18, City 22 To 15. I Replaced Plugs, Air Filter, And Master Air Flow Sensor. It Acts Like It's Missing...