Aerodynamics IS-F v. IS350
#48
Ok but that doesn't mean it gets over 30mpg. What is start stop? And I know they have cylinder deactivation but if it is on 4cyl mode on the freeway cruising anywheres from 60-80 the faster you go after 55-65 your gas mileage will decrease. Plus a 4cyl has to work harder to move the car. Meaning higher rpm which is less fuel economy. But I guess if it had an 8 speed auto....
#50
I know my IS300 has a 17.5 the ISF I believe is 16.9 and my Rav4 is 15.9 I'm pretty sure. Owners manual on the Rav says the fuel light comes on with 3 gallons left to my knowledge It's been a long time since reading the Rav4 manual but I know the IS300 is 17.5 I can't recall how big my GS400's tank was. I am going to drive a little slower ughh on my way back to ND from Milwaukee 65 on my first fill up with nonethanol fuel and see where it sits. For some reason I always fuel mileage my vehicles when filling up. People on the Rav4 site deleted my post because I started arguing with a guy that right off the bat said I need ti keep my right foot out of the gas. Lol I said the 2.4 isn't for flooring the ISF is. He didn't have much to say about that.
#51
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All years of the IS F are 16.9 gallons. My light comes on with 14.2 needed to fill consistently.
#52
That is about right in line with the 3 gallon mark with tje Rav4 and hell I drove the IS300 for so long I guess I never knew when it came on. I don't think the manual said. Good heads up. Be on the lookout as I am going to try and fight a west wind with nonethanol at 65???
#53
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Show me that same number with 475 miles on the odometer and I'll be a believer. I once went 60 miles from Lincoln, NE to Council Bluffs, IA in my Supra on only a gallon of gas. I have no idea why or how except there was a very strong tailwind the whole way.
#54
Sweet. But how does that show 37.7mpg?
#56
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U.K. Gallons, so slightly bigger, 99RON fuel, and one of the most boring drives I've ever had, haha!
Last edited by MrFunex; 04-02-16 at 10:09 PM.
#57
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FWIW, there are 1.2 US gallons to 1 UK gallon, so you would need to subtract 20% off the top to equate to what we in the US see on our displays. If this were a US model, it would show 30.2 mpg. Still impressive, but not quite the "how did he do that?" mileage that 37.7 mpg is.
#58
Wind tunnel pictures
Some images of cars in the wind tunnel. ISF and many popular cars pictured along with CD and lift/down force.
http://ecomodder.com/forum/showthrea...-26678-33.html
http://bigmike.marlincrawler.com/for...php?topic=33.0
http://ecomodder.com/forum/showthrea...-26678-33.html
http://bigmike.marlincrawler.com/for...php?topic=33.0
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aero, aerodynamics, airodinamic, bogging, club, coefficient, coeficcient, drag, dynamics, is350, isf, lexus, lower, rpm, toms