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TuckerLdlow
Dodge Dakota
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5/28/2006
11:33:03
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 Subject: How come? Bad gas?
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Message:
Last weekend, took a trip to GA to visit my Dad (in a nursing home). Truck got 17.3 MPG for the trip, and frankly, I had been getting pretty aggravated with it because my old problem of it downshifting on just about every hill had came back over time. Fact is, I'd already started laying the groundwork (with the wife) to trade this puppy.
This weekend, I'm in Greenville, NC visiting the daughter and grandbaby - and the truck's getting 21.1 and only downshifted twice all the way down! The only thing that I've done different is screw up - by hitting the wrong button when I filled up night before last before I left home, when I selected mid-grade instead of 87 octane. I didn't notice it until I got the receipt. Oh, and I ran the speed limit, 65-70MPH. If anything, the trip to GA should have been better because about 70 miles of that is back country (but good) roads where 60 is the max speed. Down to Greenville, NC, it's interstate all the way.
'02 3.9, K&N drop-in, Fastman, APP3923's gapped 45, Amsoil (that's due a change). Other than that, bone stock, except for a little Seafoam in the oil.
Can 2 digits in octane rating make that much difference? ???
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Wadak
GenIII
5/29/2006
00:21:54
|  RE: How come? Bad gas?
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Message:
Try repeating the test you just ran and see if the smae thing happens. Every truck runs a little bit different.
92 and 97 Daks both with many mods.
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?
Dodge Dakota
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5/29/2006
10:48:48
| RE: How come? Bad gas?
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Message:
You got it -=- fill with 89
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TuckerLdlow
Dodge Dakota
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5/29/2006
16:15:43
| RE: How come? Bad gas?
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Message:
OK - returned home today after filling it in Greenville with mid-grade. Return trip (278 miles) got 20.2 MPG, with 4 downshifts. It would have done better, but I pushed a little harder coming back that first 80 miles than I did going down. One long hill had 2 of the 4 downshifts - it's ALWAYS downshifted on that hill, and the 3rd probably wouldn't have happened at all except that I got boxed in behind a slow-moving camper. Looks like I'll be staying with mid-grade, since it only costs me a little over a buck a tank more and pays me back 4-5 times that much.
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toolfan
GenIII
5/29/2006
18:41:10
|  RE: How come? Bad gas?
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Message:
i get better gas mileage with the mid grade. i got 17.4mpg on the freeway cruisin at 80+mph with the 5.2L in hilly high elevation.
never had the down shift problem. truck never drops out of O/D on the freeway, going up 6%grades at 6000ft elevation with ease.
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TuckerLdlow
Dodge Dakota
JOIN HERE
5/29/2006
21:21:32
| RE: How come? Bad gas?
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Message:
You must in in Colorado, Toolfan. Greenville, NC has an elevation of only 120 FT above sea level, and where I live, it's about 1,200 above. I'm in the NC foothills.
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toolfan
GenIII
5/30/2006
00:47:26
|  RE: How come? Bad gas?
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Message:
nope, California, but those damn Sierras are tall and steep. elevation where i live is 2400ft
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