I have a 05 Civic SI and was running Castrol Syntec 5w20 with 27.1mpg city/highway. I tried Mobil 1 and have been getting 25.5mpg city/highway. I always liked Castrol Syntec and now I will be going back! P.S. The Mobil 1 was also 5w20. Any thoughts?
Worse mpg with Mobil 1
- Thread starter meeze
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When do winter gas blends start showing up?
Palut brings up a good point. If my memory serves me right, September is when they start to phase in the oxygenated fuels for the northern climates, but meeze is in Clearwater, FL. I didn't think that they did it for the southern region, but they might just do it across the board considering that you never know where they'll be delivering the fuel to and from.
I strongly expect that there is another variable causing this difference.
The environtmental standards have been temporarily relaxed due to the problems with supply because of Katrina. Basicly, the refiners can now just make gas, instead of worrying about environmental laws. It may mean the "quality" is better, if ethanol is excluded.
Was this a single tank of gas or over a oci? Calculating gas mileage off of a single tank of gas has a lot of variables like different fuel pumps, type of driving etc. even more so considering the small 13.2 gallon fuel tank.
I checked the mpg about 4 or 5 times putting in 9 to 10 gallons each time and then averaged it out. It might very well be the different fuel making process since Katrina graced our shores.
Are you comparing using the EXACT same brand of gasoline all the time. I can get quite different mpg from different brands of gas doing basically the same driving route routine. For me Shell gives the best mpg and Amoco and Getty give the worst mpg. All brands I use are regular 87 octane
Whimsey
Yeah I hear yah! Just when you thought changing to something better supposed to produce the intended result, not always though.
One of the richest country in the world and the population nags about 2.4 mpg, mmmm...........
In a civic SI no less. The "high performance" version.
Discussions like this are what BITOG exists for. There are plenty of "Bash-the-States" sites out there where you will get a lot more mileage out of your comments. . .
What's up with this abimanyu guy? His comments generally have nothing to do with the topic at hand, or at least aren't helpful and are in the wrong forum.
Back on topic - that is a huge percentage change. That alone tells me it isn't the oil. I have a hard time thinking even a 20W-50 would make that large of delta. (it could I suppose) but you used basically the same viscosity. So as the others have said; look elsewhere.
Exactly what I was thinking, on both counts. Assuming he measured the mileage accurately, there's an issue out there that ought to be at least ID-ed, and depending upon what it is, perhaps addressed. If it's just fuel, oh well. If some part or system is malfunctioning, it obviously needs attention.quote:
Originally posted by Pablo:
What's up with this abimanyu guy? His comments generally have nothing to do with the topic at hand, or at least aren't helpful and are in the wrong forum.
Back on topic - that is a huge percentage change. That alone tells me it isn't the oil. I have a hard time thinking even a 20W-50 would make that large of delta. (it could I suppose) but you used basically the same viscosity. So as the others have said; look elsewhere.
I think it is the fuel Thanks for your thoughts
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