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Old 10-29-2009, 04:59 PM   #10 (permalink)
Old Tele man
...beats walking...
 
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Join Date: Jul 2009
Location: Tucson, AZ
Posts: 3,037

Vibe - '09 Vibe Base (2ZR-FE)
90 day: 32.85 mpg (US)

Goldie Locks - '011 Cruze LTZ
90 day: 28.75 mpg (US)
Thanks: 51
Thanked 266 Times in 204 Posts
...new plugs & wires = putting things BACK to where they're SUPPOSED to be, which just gets you BACK to 100%-optimal efficiency...anything goes wrong and you're DOWN to less than optimal.

...count the LRR tires as ABOVE 100% because they weren't OEM on the car, they're a BONUS over that 100%-optimal benchmark.

...count the grill block as ABOVE too, if it works well enough (some changes are only subtle).
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2011 Chevrolet Cruze LTZ 1.4LT 6A
2009 Pontiac Vibe 1.8L/SIDI 4A
2004 Pontiac Vibe 1.8L/MFI 4A
2003 Ford Focus ZX5 2.0L/Zetec 4A

1971 Dodge Charger 318 3A
1970½ Plymouth AAR 'Cuda 340/6BBL 4M
1968 Dodge Charger 383 3A
1967 Plymouth Barracuda Formula S 383 4M
1965 Plymouth Barracuda Formula S 273 4M
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