Anyone else on the east coast notice that when they fill up @ WaWa they get worse MPG? I noticed it on my Mustang but assumed it was because the car was custom tuned for 94oct and when I ran WaWa instead of Shell or Sunoco my MPG would noticeably go down. Now I have noticed that even in my Altima that I get worse MPG on WaWa gas than Shell or Sunoco.
WaWa gas = worse MPG?
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What the heck is a wawa? Lol
Originally Posted By: Chris142
What the heck is a wawa? Lol
Google works wonders:
http://www.wawa.com/WawaWeb/Fuel.aspx
What the heck is a wawa? Lol
Google works wonders:
http://www.wawa.com/WawaWeb/Fuel.aspx
What % difference are we talking about? My first guess would be the E10. E10 means up to 10%. Some places are doing 6% or 7% and some 10%.
Get a cup of each in a clear jar and add small measured amounts of water to each until you see phase separation. That I believe is the easy way to tell the % of alcohol.
Get a cup of each in a clear jar and add small measured amounts of water to each until you see phase separation. That I believe is the easy way to tell the % of alcohol.
JHZR2
Staff member
nope, havent noticed this.
gathermewool
Site Donor 2023
Wait, so you're custom tuned for 94 AKI, but fill up with lower octane at Wawa? Is it 93 or 91 AKI they have?
If you want to run low octane, then you should have a 2nd map to run.
If you want to run low octane, then you should have a 2nd map to run.
There is no 94 around here anymore so for years I had been using 93 from Sunoco/Shell in my Mustang. Only WaWa 93 gave me worse MPG.
That doesn't explain why the same is whats happening on my Altima.
That doesn't explain why the same is whats happening on my Altima.
Originally Posted By: Rand
wawa is what you drink to make Peepee.
I rofl'd
wawa is what you drink to make Peepee.
I rofl'd
JHZR2
Staff member
Originally Posted By: Mach1Owner
There is no 94 around here anymore so for years I had been using 93 from Sunoco/Shell in my Mustang. Only WaWa 93 gave me worse MPG.
That doesn't explain why the same is whats happening on my Altima.
Check the pump. Some WAWA premium is 92!!!!!
There is no 94 around here anymore so for years I had been using 93 from Sunoco/Shell in my Mustang. Only WaWa 93 gave me worse MPG.
That doesn't explain why the same is whats happening on my Altima.
Check the pump. Some WAWA premium is 92!!!!!
I have the same complaint about Pilot premium unleaded in the past decade or so. I speculate that some stations (or brands?) simply add more ethanol to their 'premium' gasoline to boost the octane cheaply.
Originally Posted By: Mach1Owner
Anyone else on the east coast notice that when they fill up @ WaWa they get worse MPG? I noticed it on my Mustang but assumed it was because the car was custom tuned for 94oct and when I ran WaWa instead of Shell or Sunoco my MPG would noticeably go down. Now I have noticed that even in my Altima that I get worse MPG on WaWa gas than Shell or Sunoco.
I recall seeing several WaWa stores in New Jersey and thought it was a strange name.
- Maybe the particular WaWa store in question is watering their gas? Stranger things have been known to happen. With the price of gas, an ingenious grave-yard shift clerk could help balance his budget.
- Maybe that store or the whole chain doesn't use top-tier gas? There are several threads on this board about top-tier gas. It mostly has to do with the additive package, but maybe there's something in the additives that your vehicles particularly like.
- Maybe the Wa#Wa folks are reporting the octane number in a less-than-common way [e.g. RON instead of (RON+MON)/2]. I know that (RON+MON)/2 is common US practice (Canada is the same), but is a gasoline seller required to report octane one way or another? Be sure to read the fine print on the pump.
Anyone else on the east coast notice that when they fill up @ WaWa they get worse MPG? I noticed it on my Mustang but assumed it was because the car was custom tuned for 94oct and when I ran WaWa instead of Shell or Sunoco my MPG would noticeably go down. Now I have noticed that even in my Altima that I get worse MPG on WaWa gas than Shell or Sunoco.
I recall seeing several WaWa stores in New Jersey and thought it was a strange name.
- Maybe the particular WaWa store in question is watering their gas? Stranger things have been known to happen. With the price of gas, an ingenious grave-yard shift clerk could help balance his budget.
- Maybe that store or the whole chain doesn't use top-tier gas? There are several threads on this board about top-tier gas. It mostly has to do with the additive package, but maybe there's something in the additives that your vehicles particularly like.
- Maybe the Wa#Wa folks are reporting the octane number in a less-than-common way [e.g. RON instead of (RON+MON)/2]. I know that (RON+MON)/2 is common US practice (Canada is the same), but is a gasoline seller required to report octane one way or another? Be sure to read the fine print on the pump.
We don't have that brand here. I did fill up at one back in September on a Trip I took down to VA. 1st time I had ever even heard of that brand. Only stopped there as I really needed gas and I couldn't find anything else open( it was like 3AM and I don't like to leave the highway and go exploring ).
I didn't really think about it but since you asked I went and looked. The tank before the WaWa fill up was 28.09 MPG( Exxon 89 ). The tank running WaWa( 87 octane )netted 29.0 MPg even.
So in my one use of it I got better MPG than Exxon. Hardly a conclusive result though.
I didn't really think about it but since you asked I went and looked. The tank before the WaWa fill up was 28.09 MPG( Exxon 89 ). The tank running WaWa( 87 octane )netted 29.0 MPg even.
So in my one use of it I got better MPG than Exxon. Hardly a conclusive result though.
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Weird, I've never really kept records, but every time that I've filled up @ WaWa I feel like I have to fill up sooner.
have you checked the reid vapor pressure? that might tell you what some useful info.
Originally Posted By: morris
have you checked the reid vapor pressure? that might tell you what some useful info.
Maybe not.
Reid Vapor Pressure is useful to refiners, and is normally done by a testing lab under contract to the refiner. If the pressure is too high, you might get vapor lock; if too low, you might have hard winter starting. There may be some environmental considerations, as well. But fuel economy isn't usually associated with RVP or the test for RVP, even assuming a consumer could get the test done.
The gasoline you consume has long ago departed the refinery, passed through a pipeline and is waiting in storage tanks to be delivered by a truck to the retailer's storage tanks. When a retailer contracts for gasoline delivery, do they even specify the RVP? What, if anything, could the tank farm operator do about it?
have you checked the reid vapor pressure? that might tell you what some useful info.
Maybe not.
Reid Vapor Pressure is useful to refiners, and is normally done by a testing lab under contract to the refiner. If the pressure is too high, you might get vapor lock; if too low, you might have hard winter starting. There may be some environmental considerations, as well. But fuel economy isn't usually associated with RVP or the test for RVP, even assuming a consumer could get the test done.
The gasoline you consume has long ago departed the refinery, passed through a pipeline and is waiting in storage tanks to be delivered by a truck to the retailer's storage tanks. When a retailer contracts for gasoline delivery, do they even specify the RVP? What, if anything, could the tank farm operator do about it?
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