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Forum: General Fuel Topics

10-27-2010, 09:43 PM

Replies: 20

Mods to increase highway mpg?

Views: 4,329

Posted By FrugalFloyd

Re: Mods to increase highway mpg?

My SE-R was an exception, a MT car whose final top gear ratio only differed from its AT counterpart by 4%. My MT xB is something like 14% shorter-geared than the AT xB.

The barn door aerodynamics...

Forum: General Fuel Topics

10-27-2010, 04:42 PM

Replies: 20

Mods to increase highway mpg?

Views: 4,329

Posted By FrugalFloyd

Re: Mods to increase highway mpg?

The AT xBs have a higher final drive ratio, and turn about 500 rpm less at 60 mph than the MTs. The 1G MT xBs had an original 30/33 EPA city/highway estimate. The current 2008 EPA city/hwy...

Forum: General Fuel Topics

10-26-2010, 08:56 PM

Replies: 20

Mods to increase highway mpg?

Views: 4,329

Posted By FrugalFloyd

Re: Mods to increase highway mpg?

My xB also turns 3000 rpm at 60 mph. P&G is one of the things I do to pull 50+ mpg on highway trips with that atrocious gearing. Going slower is the other. The xB returns only 32 mpg at 70 mph.

Forum: General Fuel Topics

10-24-2010, 08:23 PM

Replies: 20

Mods to increase highway mpg?

Views: 4,329

Posted By FrugalFloyd

Re: Mods to increase highway mpg?

Mods don't result in nearly the same mpg improvement as limiting your gas pedal use. Slowing from 65 mph to 45 mph uses 1/3 the power. Basically, you're choosing to waste gas to save time or fight...

Forum: General Fuel Topics

10-24-2010, 09:25 AM

Replies: 20

Mods to increase highway mpg?

Views: 4,329

Posted By FrugalFloyd

Re: Mods to increase highway mpg?

Leave two hours earlier, drive ten mph slower, enjoy the trip more.

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