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Sedans Hyundai Elantra Hyundai Elantra Real World MPG
295 messages, Last post on Aug 14, 2008 at 3:30 AM
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Replying to: 4ruth (Oct 15, 2006 8:52 pm)
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Replying to: jvenezia (Oct 16, 2006 2:17 pm) |
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Changing oil does not effect mpg unless a different type of oil is used, and even then it would not be 5 or 6 mpg. Must be a coincidence.
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Replying to: dudleyr (Oct 17, 2006 5:18 pm) This is it. Amsoil is done! The oil exceeded a year in service, with 14,000 miles on the ticker, and no filter change! Well, if the year hadn't ended, we would have had to change the filter now -- it finally reached our insolubles cap, 2,000 miles after Mobil 1. The main thing that stands out on this, our final Amsoil sample, is the ridiculous viscosity. This 5W30 oil has now thickened out to a 15W40 -- argue whether it matters if you like, but we believe engine builders spec an oil for a reason, and this oil is far, far thicker now than intended for the LS1. Switching to our flush Mobil 1 netted a nearly instant 10% improvement in fuel economy, and the engine runs a heckuva lot smoother too. To Amsoil's credit, wear metals remain in check, but we will soon see whether that was really thanks to the oil or just to engine break-in. We'll start posting detailed analysis in the coming weeks. Full lab test story at, http://neptune.spacebears.com/cars/stories/oil-life.html
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trip to Houston and back. Averaged 35mpg as long as I didn't go over 70mph. With a 2004 5spd using no ac. The RPM at that spd is near 3,000. Anything over that brings on eng growl and vibration. On the plus side, the car used no oil.
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Replying to: gary045 (Oct 26, 2006 4:04 pm) I used syn oil in my trip to Houston and back. |
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Replying to: gary045 (Oct 26, 2006 4:18 pm) In my '01 GLS 5-speed, I regularly got upper 30s (regular oil) if I kept it under 70, with a sweet spot at 55-60 mph where it would do over 40 mpg. 
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Replying to: backy (Oct 26, 2006 7:31 pm) Are you kidding me? Over 70 MPH in an Elantra 5-speed produces revs in excess of 3K. At that speed I can barely hear myself think or as C & D described it in the new Elantra, "Maddening." In 50/50 driving with the A/C on continuously (this is sunny FL), I average around 25-26 MPG. HYW speeds average 70MPH and City about 35-40MPH. A few of my friends report about the same average with their Elantras. |
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Replying to: germancarfan1 (Oct 27, 2006 5:41 am) |
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Replying to: germancarfan1 (Oct 27, 2006 5:41 am) Someday I'll have to try that "average of 70mph" thing and see how that improves my gas milage. But highway driving at around 80mph average gets about 31-32 mpg for me.
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