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Old 03-13-2019, 09:28 PM   #1 (permalink)
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Default Horn's Potenza vs. Regular Tire Comparison

First off, this is not a perfect test. "Ain't nobody got time for that".

So, my original tires were some mastercraft tires. They were a little bigger, but according to my gps, it was barely any different from the speed. I recently checked with some used potenzas and about the same.

After about 3 complete tanks with the mastercrafts, I got:
- 52 mpg (work route. some hwy and some stop and go)
- 56 mpg
- 60 mpg (mostly highway and had some good drafting)
- During this time, i have had had a lower bumper air block. (not the whole time).
- These calculations were by calculator. The FCD always reads a bit higher

Haven't started a full tank yet, but will very shortly. Just picked up the used potenzas today (got them in a junkyard )

Aside from that, I have also added a few pieces of under body plastic that were missing. Another note - The Autostop does not work. Never has and haven't figured it out yet.

So, over the next months, I'll try to remember to note my tanks. Would really like to compare other LRR tires, but that won't happen. I'm not here to debate other LRR vs the Potenzas, nor am I here to debate the financial aspect of it.
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Old 03-14-2019, 12:30 AM   #2 (permalink)
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What size were the mastercraft tires?
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Old 03-14-2019, 12:42 AM   #3 (permalink)
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Check your Outside air temperature sensor connector.
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Old 03-14-2019, 12:48 AM   #4 (permalink)
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Quote:
Originally Posted by tryingbe View Post
What size were the mastercraft tires?
Will double check tmw

Quote:
Originally Posted by Willie Williford View Post
Check your Outside air temperature sensor connector.
Already did. tested and verified it was good. i have another thread regarding it.
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Old 03-14-2019, 07:38 AM   #5 (permalink)
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Default Tire comparisons

When the winter to summer fuel changes you will see increased fuel mileage.
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Old 03-14-2019, 08:14 PM   #6 (permalink)
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Quote:
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When the winter to summer fuel changes you will see increased fuel mileage.

Ain't that the other way around?
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Old 03-14-2019, 08:46 PM   #7 (permalink)
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Nope. You get better mileage with summer fuel.

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Old 03-14-2019, 09:24 PM   #8 (permalink)
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Don't they put smog reducing additives in summer fuel that reduces their energy content and thus mileage?
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Old 03-15-2019, 02:47 AM   #9 (permalink)
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Yeah the summer gas is way better. I didn't even think of that. I don't know if they switched over yet. I put in a full tank today so we will see.

I guess this is less of a tire comparison and more of an "improvement comparison" overall.
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Old 03-15-2019, 11:03 PM   #10 (permalink)
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I believe that there are regional blends. IIRC when I lived in CA the shift to summer mix was not a happy moment for folks with internal combustion engines. SMOG was always a serious concern, worse in warmer weather, and I believe that ethanol addition was a big part of the effort to reduce SMOG. For nerds: https://www.arb.ca.gov/fuels/gasoline/cbgupdat.htm
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