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87 messages, Last post on Jun 24, 2008 at 12:29 PM
You are in the Subaru Crew Forum. Your Host is kcram
Your Community Leaders are ateixeira and rsholland.
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Replying to: subi4obs (Jul 11, 2006 8:15 am) Eric
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Replying to: rangner (Jul 11, 2006 2:22 pm) After realizing that the car must have spent a long time on the lot (actually came from Nashville, TN, about 100 miles from local dealership) I drained the gas tank to get any trapped bad gas out of there (are two sides to these, as you may or may not know, so that meant opening two different plugs). Then I changed the fuel filter. Well, I finally noticed the car will ping most when the gas tank gets below 1/2 full and especially if only at 1/4. Gas treatments were tried but I hadn't found any remedy by doing that. I think maybe higher octane helps but I only gave that a try twice. I almost always get gas at either Raceway or Pilot near home. Haven't checked into what percentage of other stuff might be mixed in. I think the majority of pinging-- aside from that caused (supposedly) by the tank levels-- happens only during acceleration and steady uphill climbs. Oh yeah... another thing too... there's also occassional high-pitched plunk noises during sudden decelerations (just once each time). Doesn't happen everytime but enough to be a bother to me. Sounds like a metal sheet being hit lightly under the car. I've found out that's possibly something about extra gas igniting in the exhaust pipe near the catalytic convertor, maybe, which is something I need to talk with the service people about when I take the car in for its 30K mile checkup. Another thing I had a lot with this car is the awful sulfur smells, another thing said to be about catalytic convertors having trouble with burning fuel cleanly enough or whatever. I don't know much about it, just what I've read or heard said. Luckily those are few and far between anymore, yet seemed to happen a lot during the first year or so. Thanks for asking Eric, hopefully not too much info given.  I really need to get a look at the Ethanol, MTBE stuff when I'm at the gas stations!
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I don't know if I've screwed up the math or not, but my wife drove the 2000 outback to nashville on a full tank of gas and when she got back I filled it up again taking 9.21 gallons. She drove between 70-75mph. Oh, and tire pressure was 32-33psi cold. With a round trip of 328 miles I figure 35.6 mpg?!! This is on shell v-power premium gas. Usually on regular I get 24-25mpg. I switched to premium because of somewhat regular pinging. Now it doesn't ping anymore and gets incredible mileage. I'll keep checking it to see if this mileage keeps up or not. I couldn't be happier!  Eric
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Replying to: rangner (Sep 20, 2006 7:55 pm) -juice
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Replying to: ateixeira (Sep 21, 2006 9:01 am) But the needle pegged at the same place it always does... I'll wait and see what it does on this tank. Eric |
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Replying to: grahampeters (May 16, 2005 2:58 pm) 1. 8.0 L/100 km ==> 235/8 = 29.4 mpgUS 2. 8.0 L/100 km ==> 282/8 = 35.3 mpgUK 3. 29.4 mpgUS ==> 235/29.4 = 8.0 L/100km 4. 18.8 mpgUK ==> 282/18.8 = 15.0 L/100km |
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Not many posts going on here so I'll mention my change from 87 octane (almost always cheapest found) to 89 octane. It apparently dropped from 27 MPG to 24 or 25 at first. Now after 3 tankfuls it's back again to 27. I almost never buy gas from places like Chevron, Exxon, Shell, etc. so it's usually Murphy USA, RaceTrac (or Raceway), Pilot, Wavaho. I remember when I tried Shell premium once (only once) and I think the MPG increased to 28. But that was a couple years ago so I can't say that with absolute certainty. I'm considering paying a little more for awhile and see if it helps stop the engine knock I've been plagued with. For now I'm still getting the gas at the cheaper places and I might move on to the expensive stuff at least temporarily to find out what changes happen. I'd have done this sooner if not for the bad timing of price increases. Interestingly, the car is rated at 21 city, 27 hwy. I probably only drive in city traffic 10% of the time so the gas mileage must be what's to be expected. |
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do people think a 3.0 Bean will get better mileage than a 2.5 XT OB turbo with auto ? I ask because its probably a choice between those two to replace my 98 legacy (unless the bums at SOA come out with a 2.5i with VDC).
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Replying to: cptplt (Feb 21, 2007 3:10 pm) |
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Replying to: cptplt (Feb 21, 2007 3:10 pm) If you baby it, it'll probably be about the same mileage. Odds are the H6 will cost less to fuel up, especially if you use regular or plus. -juice |
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