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Old 07-16-2017, 09:27 AM   #4 (permalink)
ECO-AKJ
Focused on MPG
 
Join Date: Apr 2009
Location: Uphill from the river!
Posts: 432

Marinator - '06 Mercury Mariner Premier
90 day: 10.61 mpg (US)

SILVER BULLET - '19 DODGE GRAND CARAVAN GT
90 day: 19.6 mpg (US)

Myrtle - Wife's JKU - '12 Jeep JK Unlimited Sport
90 day: 15.7 mpg (US)
Thanks: 124
Thanked 128 Times in 102 Posts
If you try the automatic, shift to neutral at speed with engine on and see if rpms drop to idle or close, if they don't drop, you won't achieve good numbers that you are hoping for.

My Focus drops to idle, but my wife's Mariner doesn't, it holds the rpms.
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