Guess The MPG Gain!
#221
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Thread Starter
Originally Posted by truckmike26
1-2 mpg. The hubs and O2 dinky will do it all. I put a Bosch it when I did mine. Works great! Runs smooth and strong. Highly recommended.
Lamm
#222
Registered User
so do i get the old axle grease? woooohoooo!! lol
So when you correct for your odometer you are getting about 14mpg?
Mine got that prior to the HG gasket pretending it was a grenade...lol
So when you correct for your odometer you are getting about 14mpg?
Mine got that prior to the HG gasket pretending it was a grenade...lol
#224
Registered User
Originally Posted by 4x4Lamm
Corrected is:
Before:12.50
After:14.02
I just have a hog of a 3.0 it seems.
Lamm
Before:12.50
After:14.02
I just have a hog of a 3.0 it seems.
Lamm
When I went from my michelins 235/75r15s to BFG ko 235/75r15s I lost about 1.5 mpg, so im going back to the michelins since i dont wheel enough to justify the KO's... Now if I could find them (X radial LT) in the stock 225/75r15 and a Load Range C, I could probably get my old 22-23mpg highway back....lol
tire size and type VS gearing is HUGE with my truck anyhoo...lol
Last edited by Bumpin' Yota; 08-28-2006 at 07:27 PM.
#225
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Thread Starter
Yeah, I used to get 14+ with little street tires, city driving.
I will be switching to 33x10.50 MT and 5.29:1 gears in a year or so.
I also have logged highway MPG 15.8 before my fueal saver mods so I would estimate I could push 18 now, pretty good.
Lamm
I will be switching to 33x10.50 MT and 5.29:1 gears in a year or so.
I also have logged highway MPG 15.8 before my fueal saver mods so I would estimate I could push 18 now, pretty good.
Lamm
#226
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Congrats to nunsa. thanks for the fun contest Lamm. Now i'm going to have to baseline my truck again and see what kind of mileage I'm getting before and after I do my fall tune up. I'll post the results. Aviator
#227
Contributing Member
Two-Sample T-Test and CI: MPG, Period
Two-sample T for MPG
Period N Mean StDev SE Mean
After 3 13.233 0.231 0.13
Before 3 11.800 0.173 0.10
Difference = mu (After) - mu (Before)
Estimate for difference: 1.43333
95% CI for difference: (0.90293, 1.96374)
T-Test of difference = 0 (vs not =): T-Value = 8.60 P-Value = 0.003 DF = 3
So, we CAN say the difference is statistically significant at a 99.7% confidence level - very good!
Two-sample T for MPG
Period N Mean StDev SE Mean
After 3 13.233 0.231 0.13
Before 3 11.800 0.173 0.10
Difference = mu (After) - mu (Before)
Estimate for difference: 1.43333
95% CI for difference: (0.90293, 1.96374)
T-Test of difference = 0 (vs not =): T-Value = 8.60 P-Value = 0.003 DF = 3
So, we CAN say the difference is statistically significant at a 99.7% confidence level - very good!
#229
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This is why I never got into statistical analysis... tc could you please explain your formula for the rest of us? Thanks Aviator
by the way not flying tomorrow so I had 2 manhattens and half a bottle of wine with dinner. So my brain is running on E85 and the HP just ain't there haha
by the way not flying tomorrow so I had 2 manhattens and half a bottle of wine with dinner. So my brain is running on E85 and the HP just ain't there haha
Last edited by aviator; 08-29-2006 at 03:50 PM.
#230
Contributing Member
T-test is two tailed (well, actually, you can set the program to do it either way, but generally two-tailed is the appropriate way)
Just a summary of the two groups
The difference between the means is 1.4333, and we have a 95% confidence level that the mean is somewhere between 0.90 and 1.96
T-testing is a hypothesis test. In this case, the null hypothesis is that they are equal (difference=0) You can't ever really "accept" the null hypothesis, you "fail to reject it". If the P-Value is low, however, you can reject the null hypothesis, and say the two distributions are different.
1-PValue is essentially your confidence level on how sure you are the populations are different.
Originally Posted by tc
Two-Sample T-Test and CI: MPG, Period
Two-sample T for MPG
Period N Mean StDev SE Mean
After 3 13.233 0.231 0.13
Before 3 11.800 0.173 0.10
Two-sample T for MPG
Period N Mean StDev SE Mean
After 3 13.233 0.231 0.13
Before 3 11.800 0.173 0.10
Originally Posted by tc
Difference = mu (After) - mu (Before)
Estimate for difference: 1.43333
95% CI for difference: (0.90293, 1.96374)
Estimate for difference: 1.43333
95% CI for difference: (0.90293, 1.96374)
Originally Posted by tc
T-Test of difference = 0 (vs not =): T-Value = 8.60 P-Value = 0.003 DF = 3
1-PValue is essentially your confidence level on how sure you are the populations are different.
Originally Posted by tc
So, we CAN say the difference is statistically significant at a 99.7% confidence level - very good!
#231
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Location: Los Altos, CA (Flagstaff, AZ for college)
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so weird...i'm up in flagstaff, az now for school. took my girlfriend down to pheonix for a flight and got 19 mpgs on the way down! ok it is mostly downhill but that still doesn't make sense. i went down at around 75 all the way, little uphill w/ the o/d off. i still don't believe it. maybe the pump in phx was off? lol well w/e i'll take watever i can get w/ my 3.slow auto
#233
Registered User
I once got 22 mpg doing a steady 80 (55 mph) on a flat secondary road going for a few hours. It's true about keeping yer foot outta it. And that was without my tonneau that I have on now.
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