Absurd Mileage!
I'm in pursuit of absurd mileage. I'll be tracking every trip I make on this 16.2 galllon tank of 87 octane in my 08'ss. I'll just update this specific post as i count down to empty. I will give a estimate temperature, wind if any, terrain descript....assume no A/c unless noted, front windows cracked, sunroof on vent NO CRUIES CONTROL EVER, I'll note how many times I turn off my engine other than first start and last stop, passengers....traffic etc. 36psi tires after parked in 80 sun degress all day. The avg mpg/avg mpg is the actual overal mpg shown on the dic, and the second is the "calculated by hand-split mpg". Any suggestions or comment would be appreciated..negative or positive. Not much else to say..so here goes.
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Okay I think I have the format figured out.....
Day one... TotalMiles. TripMile. AVGMPH. TripMPH…. AVGMPG. TripMPG… FuelRange…. Projectedrange. %highway.. epa projected mlge.. Hypermile improvement over epa.. 12.4 ____ 12.4 ____ 43.0 ____ 43.0 ____ 39.2 ____ 39.2 ____ 465.0 ____ 635.0 ____ 75.8% _______ 27.1 _________ 44.8% 24.6 ____ 12.2 ____ 38.0 ____ 34.0 ____ 37.4 ____ 35.7 ____ 480.0 ____ 605.9 ____ 63.9% _______ 26.1 _________ 36.8% 27.4 ____ 2.8 _____ 33.0 ____ 15.3 ____ 35.4 ____ 24.1 ____ 472.0 ____ 573.5 ____ 0.0% _______ 21.0 _________ 14.7% 39.6 ____ 12.2 ____ 34.0 ____ 36.5 ____ 35.7 ____ 36.4 ____ 486.0 ____ 578.3 ____ 63.9% _______ 26.1 _________ 39.4% Not sure if it is clear or not, but this is four seperate drives during the same day. I only turned of my ignition during trip 2 and trip 4 once (memorized lights sequence) and im doing 30-45 in the city and 55-65 on the highway. Trip 3 was me house shopping, horrible mileage there! Also there was a decent wind against me on trip 4. I either need to slow to 55 or accept a loss of i think 2-3mpg. I went 60..lol |
Only an engineer would take MPG this into the details. I mean that in a good way, though. I wish I had the patience to do the same. I do think it good that you're using 87 octane for the testing, as that has been a question in my mind about the SS: how does it perform both in MPG and drivability on regular unleaded.
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Originally Posted by Lone Ranger
(Post 295418)
Only an engineer would take MPG this into the details. I mean that in a good way, though. I wish I had the patience to do the same. I do think it good that you're using 87 octane for the testing, as that has been a question in my mind about the SS: how does it perform both in MPG and drivability on regular unleaded.
I figure I would help put some things to rest. An promote effcient driving with whatever vehicle you already own and without slap this on your car gimmicks. As i get a basline, i would be willing to slap on some cheap gimmicks, and put them to the test. That bsr tune has my name on it. i should save enough in gas to buy it in a year or so...lol I just re-read my last sentance. In no way do i mean that the bsr/hahn tune is a gimmick. Just relativly cheap and significant power, no BS, and no mileage penalty...possibly better with 91....... who dosen't want more of that! |
Cleveland... what techniques do you use to improve MPG? You're obviously not doing any joyriding or quick starts.
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Originally Posted by a76marine
(Post 295469)
Cleveland... what techniques do you use to improve MPG? You're obviously not doing any joyriding or quick starts.
Basically I drive 5 below the posted limit. No cruise control EVER Use Pulse and Glide (P&G) when advantageous...well actually Pulse and Neutral-glide. Turn off my car at stoplights if I can predict a long wait. Or at any 6-way stop/ 4-way with dual turning lanes. Glide whenever possible, any hill, or elevation that wont cause more then a 5mph drop. Start-up with just the engine, I can make it to the highway from my apartment without ever touching the gas pedal ...approx 1 mile. Memorize frequent routes, for elevation, stops, lights, turns, traffic patterns etc. Never idle Never ever ever draft. The best feedback i get is simutaneously using the "vacuum gauge" and the inst-mpg. I keep the VG at -10 or under whenever possible, and the inst-mpg as high as possible while keeping the speed up.. The most difficult thing is adjusting to the combination of elevation change, 55-65, and the VG at -10. When all these meet, I get about 40mpg. It is the transition between flat sections that takes some concentration. I would like to say that I do not sacrifice my safety for this pursuit. If traffic is going 70 in a 60 I do 62ish, if they are doing 65 I am doing 57ish, if i lived in a state that would let folks drive 75 on cruise without the fear of driving by THE MAN, I would do 67. I like to keep an 8ish mph below the natural flow. I can go slower if there are 4 or more lanes. But when there are three and dense traffic ....or simply 1 or two lanes, i don't make the entire world wait for me. Usually i can avoid this as my daily routes do not put me in this situation, or I can choose a different route. I love great handling cars, and like a little power like the next guy. But that is for the next tank! I can talk for days if you want more specific answers about technique. |
Day number two!
TotalMiles. TripMile. AVGMPH. TripMPH…. AVGMPG. TripMPG… FuelRange…. Projectedrange. %highway.. epa projected mlge.. Hypermile improvement over epa.. 39.8 ____ 0.2 _____ 33.0 ____ 4.8 _____ 35.6 ____ 22.9 ____ 483.0 ____ 576.7 ____ 0.0% ________ 21.0 _________ 9.0% street to garage 68.2 ____ 28.4 ____ 37.0 ____ 44.6 ____ 35.9 ____ 36.3 ____ 513.0 ____ 581.6 ____ 78.9% _______ 27.3 _________ 33.0% to friends 95.6 ____ 27.4 ____ 37.0 ____ 37.0 ____ 36.3 ____ 37.3 ____ 485.0 ____ 588.1 ____ 74.5% _______ 27.0 _________ 38.5% from friends detour construction I was driving and talking with my best friend most of the way, I was kinda distracted from hardcore hypermiling. But a much more enjoyable drive...lol. I dropped from 36.5mpg overall to 36.3 in the 1.7 miles from the highway to my apartment due to an accident in the busiest place in ohio on saturday night. I turned my car off for a while but i had to weave through drunken traffic, a few cruisers and some 300C's with 24inch rims...lol My parking garage is 3 stories below ground, so getting in and out drops a bomb on FE. Oh well, the price i pay for security and convience. driving out is much worse because after a cold start up, using the gas to pull away, instead of just the idle will yield about 2mpg for the .3 miles. So in other words I got about 37-38 on my way TO my friends house not counting getting out of the garage...amazing what little things do to FE. |
When you can't stand going easy on it any longer and have a few horsepower moments with it, I'm interested in how it performs under bosot on the 87 octane fuel.
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Originally Posted by Lone Ranger
(Post 295599)
When you can't stand going easy on it any longer and have a few horsepower moments with it, I'm interested in how it performs under bosot on the 87 octane fuel.
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out of curiousity, why no cruise? cruise will do nothing but help your mileage
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