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Hybrid Vehicles Toyota Camry Hybrid Toyota Camry Hybrid MPG-Real World Numbers
856 messages, Last post on Nov 22, 2009 at 8:38 AM
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Now that winter is fully here you might want to take into consideration some of the following factors which can often be outside your control entirely. These generally act to decrease your fuel economy.  But, hey, it's the same for every vehicle on the road as well. For some it's even worse. Factors affecting your FE ( and everyone else's also, btw ) in decending order of importance... 1) Towing anything is a huge penalty possibly as much as a 50% reduction in FE 2) Lots of weight in the vehicle, passengers cargo etc. ( EPA tests are done empty ) deduct up to 20% from your 'Norm' 3) Short trips under 10 min - deduct 20% from your 'Norm' 4) Snow, Rain, sleet - deduct 15% 5) Strong head wind - deduct 10% 6) Cold weather - deduct 5 - 10% 7) High speed driving 0ver 70 mph - deduct 5 - 10% 8) Many starts from a dead stop ( going from stop sign to stop sign to stop sign ) - deduct 5 - 10% 9) Terrain - fortunately 'what goes up..' usually this balances out on a RT 10) Winter fuel - deduct 2 - 5% 11) Low tire pressure - ? How low Now these are cumulative, so short trips with a lot of stops ( -20% )( -5% ) in winter ( -7% ) on slick pavement ( -15% ) can result in as much as a 40 - 50% loss from your personal 'Norm'. The bright side of this is that your 'Norm' is higher than most others at 39 mpg. If your Norm was only 26 mpg for example you might expect to get 13-15 mpg. This is really really important when you consider how much more fuel you use in cold weather but also how much less you use relatively to a an ICE-only V6 driver. ( See below ) TCH 'Norm'  39 mpg uses 25.6 gal per 1000 mi driven TCH 'Winter' 25 mpg uses 40 gal per 1000 mi driven ICE 'Norm' 26 mpg uses 38.5 gal per 1000 mi driven ICE 'Winter' 15 mpg uses 66.7 gal per 1000 mi driven In 'Normal' driving an ICE driver will only use about 13 gal more than a TCH driver for every 1000 mi. In 'Winter' however, that ICE driver will now use over 28 gal more than a TCH driver for the same 1000 mi. Enjoy your hybrid. It will be Spring soon. 
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Replying to: kdhspyder (Dec 16, 2006 3:20 pm) I don't know if someone already have talked about this but yeah,,,try the higest rated gas if your car gives you less than 38 mpg and let me know if it improves it. 
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Replying to: inincubus (Dec 22, 2006 2:18 pm) But back to reality: there is not an iota of scientific evidence that higher octane gas provides higher MPG. If there was, then everyone would just use 95 or 93 octane and the 86/87/89 would just stop being made. |
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Replying to: larsb (Dec 22, 2006 2:27 pm) from 35 to 42,,,this didn't happen slowly over long period of time. but over just one gas tank. i'm going to experiment more. so this time I will use 87 again and see what MPG i get. Question for those who get better than 42 mpg; what type/rate of gas do you use? |
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Replying to: inincubus (Dec 22, 2006 2:40 pm) In warmer weather, I was doing closer to 40. A lot of the gas we use here is 10% ethanol which drops mpg, too. I'd like to know if anyone in the midwest with my winter weather conditions and fuel blend is doing 40 or more. If they are, I'm doing something wrong. Thanks. |
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Replying to: kdhspyder (Dec 16, 2006 3:20 pm)
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Replying to: inincubus (Dec 22, 2006 2:40 pm) The results were similar : a 4% improvement in fuel economy, but a higher cost per mile. So I will stick to standard fuel. The explanation for the higher mileage with high octane is a known scientific fact : Higher octane allows more spark timing advance (automatically performed by the ECU), wich improves energy efficiency. |
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Replying to: wvgasguy (Dec 10, 2006 1:01 pm) Update: Took the trip again for Christmas. Different variables. It was 45 degrees, 750 pounds of passenger and a full trunk. Going down I drove 80 to 85 (it has been some time since I've done this. I averaged 32.5 mpg (this is the trip portion I can average 40.5 mpg in warm weather, driving under 70). Conimg back, about the same same variables as going down except I drove 75 on cruise and I got 35 mpg. The difference in 75 and 85 mph is very significant.
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Replying to: wvgasguy (Dec 25, 2006 2:15 pm)
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Replying to: explorerx4 (Dec 22, 2006 3:55 pm) Most times the tank average would be 32-34 mpg but sometimes it would be 27 mpg. There was no way to identify why one tank might be lower than another. now with the Fuel Consumption graphs this can be measured and quantified even for limited durations. This Fuel Consumption graphing would be very very useful in every vehicle. It would show clearly the effects of different conditions and different ways of driving. You may be right about ICE's being affected somewhat less by these conditions. But any estimate is an SOTP one. |
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