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Octane ratings I notice about a 4 mpg difference in the winter months, probably because the fuel is different, between the 87 octane and the 90 octane.(in some parts of the country the gasoline used in the winter is different then the gasoline used in the summer) The difference is less during...

Octane you should try 90 octane in the corolla. You will likely get 4 mpg better. but you need to run a couple of tankfuls through to see the results. It will more then make up for the extra cost of the 90 octane. I didn't notice much difference between 90 and 93. Seams like 90 is the way...

off limits I think it can be off limits if it is distracting from the purpose. But I agree with you about the sheople. However, it's not the gov't that is using the lack of discussion against you, it is ignorance itself. When someone tells you that you need freedom! and you incorrectly...

Water vapor at intake It looks like someone beat me to it! http://www.mileageman1.com/index.html

Air volume at intake Mike, What your saying doesn't seam to make sense to me. I'm not saying it's not correct. I've seen swamp coolers with HUGE fans putting lots of humidity into the air. Also with a water injector much like a fuel injector (very tiny might I ad) you could literally pump as...

increased mpg Yes, it is amazing how quickly the mpg is increasing. Thanks to the combined efforts of government and the private sector. We have had the technology, easily since 2002, probably way earlier. The electronic variable valve timing is one of the key components. Anyone who knows...

larger tank here here... definitely a larger tank. Mine only goes about 300 miles per tank! Not nearly enough. But to put things in perspective the fuel mileage was not good on the 99's. That electronically variable valve timing seams to have made a sizable difference with respect to fuel...

The solution The solution doesn't usually exist in any one component. You may want to look up a "systems approach". Where a combination of the components of the system are optimized for a desired outcome. Each part plays it's role and does what it does best.

Avalon - size I'd like to see the Corolla get smaller. I'm not sure how this Avalon is even comparable to a Corolla. Perhaps you should post in the Cadillac forum? :rolleyes:

Avalon It looks a bit on the big side?

I'm trying to understand what's happening with my car when I change the octane of the fuel that I'm using. When I use a low grade octane such as 89 I get about 28mpg. When I use High Test such as 93 octone I get about 32 mpg. What does this mean? When I used to drive air cooled VW's I used...

Agenda My point is simply that this is a corolla forum, and that clearly you have an agenda(which to me is disrespectful of government). more than once you commented about unnecessary spending being something the government would do. Government spending is intrinsically, that is by it's...

Scott, Great information thanks again. Currently I don't know what oil is in the car since I just got it. But when I change it I will be going to a full synthetic at the viscosity recommended by the manufacturer, at the thinnest that I can. I am also a fan of Amsoil(I think it's the best...

cutting coil springs So removing half a coil isn't drastic. Why do it? I suppose just so one can say that they have modified suspension? yes, I can understand that! I would likely spend the extra $75.00 on LRR tires just to save 1-2% on my fuel economy. Same thing i suppose.

Tires Scott, Thank you for the information about the tire pressure. That totally makes sense! I don't want to put any unnecessary stress on the suspension, steering and other systems. Do you have any knowledge about the Low Rolling Resistance tires? 29 miles per gallon is not good fuel...

Coil springs Scott, Doesn't cutting the coil springs reduce the suspension travel? Isn't suspension travel one of the main components of ride of the vehicle, especially on bumpy terrain?

Info on determining Generation Wiki has some really good info on this: http://en.wikipedia.org/wiki/Toyota_Corolla

I would like to see a return to the lower roof line, aluminum block engine, overall smaller body, and better fuel economy with better emissions. Also it should have the usb port and computer program for monitoring and sharing your fuel mileage. Like the new Fiat. check it out...

mpg - Hello Scott and Trlhiker I calculate my miles per gallon by fill up and with math. I fill the tank, and reset the trip meter. drive for almost an entire tank full. Fill up the tank to the exact same place then divide the miles that I drove by the amount of fuel it took to fill the tank...

Hello Osgu, lowering the car may improve your cornering, but will likely reduce the overall comfort of your ride quality.