Last post on Nov 12, 2013 at 8:41 AM
You are in the Toyota Prius
What is this discussion about?
Toyota Prius, Hybrid Cars, Fuel Efficiency (MPG), Sedan
#462 of 997 Re: mileage difference between 2007 & 2008? [carz89]
Dec 31, 2007 (1:25 pm)
Its funny you make a joke of the non-hybrid version. The following is a true story. About 6 months ago I received a call from my local dealership from, what I believe was a new salesperson. He first wanted to know how my current Toyota Prius was handling. But second was I aware that Toyota now came out with the hybrid version of the Prius? Wow that surprised me. I didn't realize that there was a non-hybird version (of course I know that). As soon as I started educating him, he got a bit nervous and end the call quickly.
#463 of 997 Re: mileage difference between 2007 & 2008? [paul34b]
Dec 31, 2007 (2:51 pm)
Hilarious! Yes, some car salespeople are just like telemarketers in one respect ... as soon as you engage in conversation about something their job requires them to be knowledgeable about, you soon realize how ignorant they are!
The salesperson I bought my Prius and HH from knew absolutely nothing about the cars he sold me, but at least he was very aware of his own shortcomings and didn't BS me. Some salespeople are so proud that they will fabricate information on the spot if they don't know it.
I did come across some extremely knowledgeable salespeople when shopping for my hybrids, but did not end up purchasing from them because they couldn't offer me the best price.
Dec 31, 2007 (5:42 pm)
I'm on my second Prius ('04, 06) and also own a 400h hybid. I have attempted to fill the tank to capacity, but super conservative Toyota really puts a margin on the overflow valve.
My record is THIRTY clicks after the pump clicks off and I have NEVER overflowed the tank one drop.
#465 of 997 Re: Gas tank capacity? [carbot]
Dec 31, 2007 (6:02 pm)
Do you know how many gallons you needed for a full tank a -94 and -50 miles? Or right at empty for that matter. Those would be a more valuable number to me. I find it hard to beleive the Prius needs a 2.5 gallon fuel reserve.... I used to run my Malibu down to half a tank on a regular bases and I never once "ran out of gas". What good is a fuel gauge if it isn't acurate
Jan 04, 2008 (8:36 am)
Our state/county (Oregon/Lane) is moving toward a requirement for all gasoline stations to sell at least a 10% mix of Ethanol. I thought I read that the Prius engine cannot use biodiesel; is this E-10 fuel a problem for my Prius? I own a 2006 and I LOVE IT! I'm currently averaging about 45 mpg - with a combination of in town & freeway driving.
#467 of 997 Re: 10% Ethanol fuel [vanderhorstg]
Jan 04, 2008 (12:22 pm)
In the owners manual Toyota says you can use "up to 15% ethanol fuel". With 10% you will loose about 2 MPG (ethyl alcohol contains less energy than "gasoline"). The engine will run cleaner, however (less soot deposits in the engine). So yes, E10 will be fine (I have been using it for the last 8 months).
I think you're a little confused. You don't have a diesel engine, so no, you can't use diesel or biodiesel. You can use gasoline and gasoline containing up to 15% ethanol, or E15. Regular grade gas is best, but be aware also in the manual Toyota states "recommended use of Premium grade gasoline". They are referring to the "enhanced" gasoline that several auto companies and oil companies have come out with - see Shell commercials for info on this. They are not referring to the octane rating. 85 or 87 octane fuel is just fine in the Prius.
#468 of 997 Re: 10% Ethanol fuel [pathstar1]
Jan 04, 2008 (2:22 pm)
Thanks for the clarification. Yes, I was confused about the difference between Ethanol and Biodiesel. I also read somewhere that the higher ethanol fuel can make it necessary to replace the fuel filter more often - have you any experience with that?
I know the ethanol change is better for the environment etc., but it's too bad it has to come at the expense of the better gas mileage that the Prius can produce on regular gasoline.
#469 of 997 Re: 10% Ethanol fuel [vanderhorstg]
Jan 06, 2008 (8:06 am)
There are reports of fuel stations having problems with ethanol fuel. They are in the minority. Here in Canada Mohawk Oil was the first to add ethyl alcohol to the fuel. This was about 15 years ago. They went through a lot of underground tanks until they learned to put in better quality ones, and look after them properly. Other companies will be on this learning curve now, but I presume they will benefit from Mohawk's experiences.
What happens is ethyl alcohol can absorb water, either liquid or water vapour from the air. This allows the water to "dissolve" in the gasoline.
The good part of this is it allows the car to "burn" any water that gets into the tank (reasonable quantities of course). It also acts like "gas line antifreeze", which is usually isopropyl alcohol.
The bad part of this is the water can contain oxygen, which can corrode the underground fuel tank. This takes years. BUT, if the underground fuel tank was already perforated by corrosion, then groundwater can get into the tank. A lot of it. This "extra" water promotes the growth of bacteria that make a living of turning iron into iron oxide. So you get fuel with rust dust, chunks of rusted iron, and water in it. Lots of people blame this on the ethanol. It's really the fault of the cheap fuel station owner, not properly maintaining the underground tank system. They will put off replacing the tank, thinking the fuel floats on top of the water, so there's no problem. Then they get caught when the fuel leaks into the ground.
So yes, if you fuel up from one of these effected tanks, you will be changing fuel line filters. But you would also even if you were using "normal" non-ethanol fuel. It just takes a few months longer for those underground tanks to fail.
I fuel up from newer stations only. Ones that get a lot of traffic. That usually ensures the fuel is clean.
Jan 07, 2008 (3:17 pm)
Ok. I've only put about 600 miles on the car so far, so maybe this will improve, but I'm currently getting about 55 MPG on the highway and at best 30 MPG in the city (if I really really baby it to the sound of blaring horns for my whole trip). The problem is my work commute is about 10 miles and 10 stop lights, so I'm spending a lot of time stopped. Anyone know of any ways to improve my mileage in city driving? I'm currently only getting about 300 miles a tank which is pretty pathetic... I had better range with my old gas guzzler
When I am at a stop light is it better to depress the break fully (so no energy is flowing, or leave it only partly pressed down (so that energy still flows from the electric engine although the car is not moving)? I have been depressing the break fully, and I was wondering if it would ease the initial acceleration from 0 (which I always do super slowly and get a few honks) which takes a lot of gas. Range was one of my motiviating factors for buying a Prius, and thus far its been an utter disappointment
#471 of 997 Re: mileage [rockpsl76]
Jan 08, 2008 (8:13 am)
You didn't mention where you are, but the cold of winter really gives the Prius a mileage hit. Once it warms up the mileage is really good. I'm probably in a colder place than you and I'm getting 6.5 l/100 km or 36 MPG US. Similar trip lengths. In warmer weather (spring, summer, and fall) I get 4.4 l/100 km or 53 MPG.
Use full brake when stopped. There is only about 2 Amps fed from the battery if you don't press fully, but it's still wasted energy. Also, use "D", not "B".
Accelerate normally from lights. It's the slowing down where you can save fuel. Try to anticipate the light and slow a long way before you get there. Don't worry about the nuts who will pull around you so they can wait at the light before you get there. Just keep telling yourself they will be the first at the accident! Once you get up to speed try to "feather" the throttle to just maintain your speed. That will allow the car to save you some fuel (it may even shut down the engine from time to time once it has reached full warmup).
Make sure you have lots of air in your tires. Most of us put in more than the door sticker calls for. I use 40 PSI front and 38 PSI rear. This actually also improves the tire to road traction, yet decreases drag. Check the tires at least once a month.
Be patient. It takes most people a few months to learn how to drive economically. Use your MFD (multifunction display) to help you to learn what actions save fuel.