SwedeSpeed - Volvo Performance Forum banner
1 - 20 of 27 Posts

·
Registered
Joined
·
492 Posts
Discussion Starter · #1 ·
Ready to be flamed for stating my gas milage But I am actually quite surprized.<p>fill up No 1 from full, 337 miles 10.2 gallons = 33.04 MPG 90% highway 87 octane<p>fill up No 2 from full, 410 miles 13.9 gallons = 29.5 MPG 70% highway 89 octane<p>No 1 and No 2 back to back and that's two and a half days of driving straight<p>granted this is the non turbo 2.4L, same engine just no turbo (could have used it passing trucks a few times).<p>02, S60 Automatic, Milage makes me very happy. I did do the plugs, airfilter, and seafoamed the TB and injectors and chambers recently. I don't drive real agressively, but consistently held 70/72 MPH when I could. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/tongue.gif" BORDER="0">
 

·
Super Moderator
Joined
·
14,831 Posts
Re: Actual gas milage readings, recent trip (fredmc)

very similar mileages to what i experienced in the t5.<p>haven't had the R long enough to do any distant driving...
 

·
Registered
Joined
·
11,936 Posts
Re: Actual gas milage readings, recent trip (fredmc)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>fredmc</b> »</i></TD></TR><TR><TD CLASS="quote"><br>fill up No 1 from full, 337 miles 10.2 gallons = 33.04 MPG 90% highway 87 octane<p>fill up No 2 from full, 410 miles 13.9 gallons = 29.5 MPG 70% highway 89 octane<br></TD></TR></TABLE><p>Is the MPG calculated from your odometer and the amount of fuel the pump put in? This will be very unreliable, pumps can vary in their "click off" sensitivity by +.5 gallons. If the MPG is from the dash computer, then you're fine, of course <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0">
 

·
Registered
Joined
·
492 Posts
Discussion Starter · #4 ·
Re: Actual gas milage readings, recent trip (Warpedcow)

If I read you right, then your saying I could be off a half gallon plus minus or so when the gas pump shuts itself off during fill up?<p>It's true I used that method. <p>But doing it repeatedly the same way and averaging several fillups gives a good number. My numbers are good.<p>Very convinced of that. I have to put on 250 miles tomorrow and have to fill up again, and will. And will edit my post with a third fill up. Not unreliable, after three data points. I consider it very accurate and reliable. Gas in, milage recorded. averages totalled....Currently I am at 30.9 MPG on this trip.<p>I will have 1000 miles by tomorrow afternoon to divide by X amount of gallons in, then with your theory, even a half gallon error (once only). will be insignificant variiation. I figure about 2% scatter. <BR><BR>
<i>Modified by fredmc at 3:36 PM 6-21-2006</i>
 

·
Super Moderator
Joined
·
14,831 Posts
Re: Actual gas milage readings, recent trip (Warpedcow)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Warpedcow</b> »</i></TD></TR><TR><TD CLASS="quote">Is the MPG calculated from your odometer and the amount of fuel the pump put in? This will be very unreliable, pumps can vary in their "click off" sensitivity by +.5 gallons. If the MPG is from the dash computer, then you're fine, of course <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0"></TD></TR></TABLE><p>no in PA. all the pumps are measured and stamped by the bureau of weights and measures and i can GUARANTEE you that they are not off by as much as 1/2 gallon. thats like 3-4 seconds of full-blast filling. <p>if you search through the forums, you will that the method of (gallons filled / miles traveled) is a much more accurate method of determining MPG vs. the trip computer.<p>
 

·
Registered
Joined
·
492 Posts
Discussion Starter · #6 ·
Re: Actual gas milage readings, recent trip (phuz)

I think what he means is that the actual "full" mark being consistent from fill up to fill up. I could believe that maybe a half gallon may determine it. But as I said, with 3 fillups that data point is moot.
 

·
Registered
Joined
·
21 Posts
Re: Actual gas milage readings, recent trip (fredmc)

Right. The full "click off" point will vary. but the reading from the pump and your odometer will be very accurate. That is the best simple way to determine MPG. Unless you have an AW 55-50 tranny and filled it up with synthetic ATF <IMG NAME="icon" SRC="http://www.vortexmediagroup.com/images/banghead.gif" BORDER="0">
 

·
Registered
Joined
·
11,936 Posts
Re: Actual gas milage readings, recent trip (fredmc)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>fredmc</b> »</i></TD></TR><TR><TD CLASS="quote">I think what he means is that the actual "full" mark being consistent from fill up to fill up. I could believe that maybe a half gallon may determine it. But as I said, with 3 fillups that data point is moot.</TD></TR></TABLE><p>You're right, the variance is not in mis-measuring the fuel you get, but in how much of the "filler pipe" gets filled before it gets clicked off.<p>Three fillups are still far from reliable, when compared to your trip computer, which is far more accurate as it measures the fuel going in to the actual engine at the injectors.
 

·
Super Moderator
Joined
·
14,831 Posts
Re: Actual gas milage readings, recent trip (Warpedcow)

gotcha. guess i should have thought about it a little more. that makes sense.<p>but if you use the same station consistently, you won't have any issues.
 

·
Registered
Joined
·
773 Posts
Re: Actual gas milage readings, recent trip (phuz)

In my experience, using the fill the tank and calculate mileage from actual fuel put in the tank, my mileage from the DIM is 5-7% low, every time. Worst was a 7% difference (low) when on a long trip. Actual mileage was 29.7 mpg, DIM said 27.6 mpg. Too consistent over 10,000 miles to be variances in how full the filler neck is.
 

·
Super Moderator
Joined
·
14,831 Posts
Re: Actual gas milage readings, recent trip (wizzard_al)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>wizzard_al</b> »</i></TD></TR><TR><TD CLASS="quote"> Actual mileage was 29.7 mpg, DIM said 27.6 mpg. Too consistent over 10,000 miles to be variances in how full the filler neck is.</TD></TR></TABLE><p>glad you can confirm this...its ALWAYS more accurate to go by how much you fill per gallons used vs. the computer. i wonder if volvo knows about this
 

·
Registered
Joined
·
2,257 Posts
Re: Actual gas milage readings, recent trip (wizzard_al)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>wizzard_al</b> »</i></TD></TR><TR><TD CLASS="quote">In my experience, using the fill the tank and calculate mileage from actual fuel put in the tank, my mileage from the DIM is 5-7% low, every time. Worst was a 7% difference (low) when on a long trip. Actual mileage was 29.7 mpg, DIM said 27.6 mpg. Too consistent over 10,000 miles to be variances in how full the filler neck is.</TD></TR></TABLE><p>I concur. I always compare my calculated mileage with the DIM and mine is usually a bit better. At least Volvo is not being over zealous in their mpg claims. I'd prefer to err on the side of caution rather than being over confident in my expected fuel economy.
 

·
Super Moderator
Joined
·
14,831 Posts
Re: Actual gas milage readings, recent trip (darylkaiser30)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>darylkaiser30</b> »</i></TD></TR><TR><TD CLASS="quote">At least Volvo is not being over zealous in their mpg claims. </TD></TR></TABLE><p>nope..only with their HP figures...oops <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/eek.gif" BORDER="0"><p>j/k..
 

·
Registered
Joined
·
11,936 Posts
Re: Actual gas milage readings, recent trip (darylkaiser30)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>darylkaiser30</b> »</i></TD></TR><TR><TD CLASS="quote">I concur. I always compare my calculated mileage with the DIM and mine is usually a bit better. </TD></TR></TABLE><p>Or perhaps your gas station is giving you more fuel than it says it is. Fuel is more dense when cold, perhaps you fill up in the morning when it's colder and the pump was calibrated in hot weather?<p><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>phuz</b> »</i></TD></TR><TR><TD CLASS="quote">gotcha. guess i should have thought about it a little more. that makes sense.<p>but if you use the same station consistently, you won't have any issues.</TD></TR></TABLE><p>The same PUMP at the same STATION, plus same weather (atmospheric pressure) and same temperature. Good luck with that LOL!<p>The DIM will be more CONSISTENT if not accurate, on a tank-by-tank basis.
 

·
Registered
Joined
·
492 Posts
Discussion Starter · #15 ·
Re: Actual gas milage readings, recent trip (Warpedcow)

can't ever use the same pump it isn't necessary<p>I added another 280 miles today that bring it up to 1030 miles and I consumed 32.9 gallons total for a MPG of <B>31.3</B><p>three fill ups is pretty accurate.<p>Anyway I am thrilled with the milage. Keeping it tuned sure helps and I don't jump on it much.<p>
 

·
Registered
Joined
·
2,257 Posts
Re: Actual gas milage readings, recent trip (Warpedcow)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Warpedcow</b> »</i></TD></TR><TR><TD CLASS="quote">The DIM will be more CONSISTENT if not accurate, on a tank-by-tank basis.</TD></TR></TABLE><p>This is true. As for Volvo's HP claims, I have yet to dyno my car so I'll have to remain neutral until I can see for myself. I will do a pre- and post-BSR flash once I have an extra grand to spend. Don't tell my wife... <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/sly.gif" BORDER="0">
 

·
Super Moderator
Joined
·
14,831 Posts
Re: Actual gas milage readings, recent trip (darylkaiser30)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>darylkaiser30</b> »</i></TD></TR><TR><TD CLASS="quote">Don't tell my wife... <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/sly.gif" BORDER="0"> </TD></TR></TABLE><p>as long as you dont tell my girlfriend <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0">
 

·
Registered
Joined
·
2,257 Posts
Re: Actual gas milage readings, recent trip (phuz)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>phuz</b> »</i></TD></TR><TR><TD CLASS="quote">as long as you dont tell my girlfriend <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"></TD></TR></TABLE><p>OK, it's a deal. Does your GF have a thing for Louis Vuitton hand bags and expensive jewelry? My wife seems to think that those things are more important than extra horsepower... <IMG NAME="icon" SRC="http://www.vwvortex.com/zeroforum_graphics/screwy.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vortexmediagroup.com/images/banghead.gif" BORDER="0">
 

·
Super Moderator
Joined
·
14,831 Posts
Re: Actual gas milage readings, recent trip (darylkaiser30)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>darylkaiser30</b> »</i></TD></TR><TR><TD CLASS="quote">Does your GF have a thing for Louis Vuitton hand bags and expensive jewelry?</TD></TR></TABLE><p>No way, i made sure i wasn't getting into one of those boats before i set sail <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0">
 

·
Registered
Joined
·
8,273 Posts
been there done that, my boat sank with my wallet inside. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/frown.gif" BORDER="0">
 
1 - 20 of 27 Posts
Top