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Old 11-09-2009, 09:44 PM   #8 (permalink)
Old Tele man
...beats walking...
 
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Join Date: Jul 2009
Location: Tucson, AZ
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Vibe - '09 Vibe Base (2ZR-FE)
90 day: 32.85 mpg (US)

Goldie Locks - '011 Cruze LTZ
90 day: 28.75 mpg (US)
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...caster is "how far" the tire patch contacts the road AHEAD/BEHIND the projected pivot/axle.

...if the contact point is right under the pivot or behind it, you end up with the "grocery-cart" vibrations.

...if the contact point is too far forward, the tire edges will be scrubbed with every light turn, which definitely will kill FE (and the tires!).
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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

Last edited by Old Tele man; 11-09-2009 at 10:55 PM..
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