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Sedans Honda Civic Honda Civic Real World MPG
2058 messages, Last post on Aug 26, 2009 at 6:19 PM
You are in the Honda Civic Forum. Your Hosts are pat & karens
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Replying to: eldaino (Aug 09, 2007 7:13 am) Right! On the C5 Corvette if one either: 1. just removes the snow prophylatic and cable ties the oem filter 2. just drills holes in the snow prophylactic cover portion, again using the oem air filter you get the EXACT dyno numbers and GREATER (than K&N) filtering ability.!!! Cost? NADA!! You ALSSO cut down enormously the potential for mineral oil migration to those critical and EXPENSIVE to fix components. |
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Since this thread was all about increasing mpg I was under the impression that we were talking about replacing the entire intake system with a k & n intake to achieve that goal. Just replacing the filter in a stock system wouldn't provide much improvement as the restrictive intake components would still be in place. my bad.
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Replying to: whitewolf (Aug 09, 2007 9:33 am) And, I would agree with the second point! All one has to do is to look at the aftermarket products! (both intake and filter products) It is HUGE HUGE business! In terms of filtering ability and so called "performance" for my .02 cents those products are not worth the asking prices. The other is the concept of cold air vs engine compartment induction!!?? VW Jetta TDI designs a so called "cold air" induction; with removable snow snorkel (my term prophylatic). The snow snorkel has a (pre) screen and (from backwards to fowards) vents to the windstream via a protected area sheltered by plastic louvers. This is further prescreened by the screened portion of a front edged bra!! Still, after a cycle of 5,000 mile snow screen cleanings /100,000 miles or 20 cleanings, I am still amazed at how much debris/dirty is "prescreened" by the snow snorkel screen!!! If I took off the snow snorkel (or just the screen) all of this would dump into the bottom or dirty portion of the stock air box!! Of course the TDI is designed in such a way where the air flow is NOT impeded (aka gets ALL the air it needs, even with the snow snorkel) for a full charge of air! So it makes almost absolutely no sense (from a performance and filtering point of view) to do any modifications. I have also done a visual inspection by wiping the clean side of the air flow intake with a hot soapy water dampen white clean rag and there is literally no dust residue!!! To boot, I EXCEED the oem recommendation for air filter change by a min of 25% to 50%!!! I do a 50/60 k miles interval when 40,000 miles is oem recommended. But truly that is WAY conservative!! I will grant the air induction system is BUTT ugly.However that is entirely a different issue, which aftermarket vendor address at steep prices!  
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Replying to: whitewolf (Aug 09, 2007 9:33 am) Best Regards, Shipo
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sorry to get off the track about air filters but wanted to submit one year's 'real world' mileage experience with my '06 civic LX coupe AT: miles driven: 20328 total gallons used: 536.9 average MPG: 37.86 best tank MPG: 44.7 worst: 33.4 average conditions: daily ~50 mile commute DC metro area (speed completely variable from 60mph to stop and go), occasional 250 mile highway trips (72-78mi/h cruise control), a/c when needed, no mods. last 6 months tire pressures +3-5psi over doorjamb specs. cheers, -C.
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Replying to: rupnok1 (Aug 09, 2007 10:17 pm) It's time we moved on. Thanks.
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My daily commute is 2/3rds cruising around 50 on rural roads, then 70+ on freeway, then 5 mins or so of stop-and-go. First two tanks were during break-in (no trips above 5000 RPM): 27.5 mpg, 29 mpg Third tank after break-in (at least one trip/day to redline), and overall more agressive driving : 27.5 mpg All tanks were during heavy AC use. I think this is pretty impressive for a performance car. I imagine with less A/C use and less agressive driving, I could easily break 30 mpg.
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Replying to: shipo (Aug 09, 2007 10:24 am)
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Replying to: ruking1 (Aug 09, 2007 7:21 am) 
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Replying to: eldaino (Aug 10, 2007 6:46 am) I suggest that before we raise the ire of our hosts any further, we put a lid on this discussion, and if necessary, continue it over in the "Gas Saving Gizmos & Gadgets" discussion. rjlee, "Gas Saving Gizmos & Gadgets" #1, 6 Sep 2001 2:50 pm Best Regards, Shipo
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