Originally Posted by TI-IS250MT
Wow, you are just a little automatic 350 fan boy aren't you? You act like you know everything and every result when in reality you haven't experimented or researched anything. If the IS-F is indeed wider, then my bad thats a very interesting peice of information. 250 Manual getting worse millage is bull shit, and the EPA ratings are simply incorrect as I have driven both. My Manual has gotten up 32 MPG on long highway trips, I have had multiple 250 auto's for rental and they consumed more gas no doubt and didn't reach the same numbers on the highway trips. There is less loss in a manual you can't argue that. Theres nothing wrong with the manual tranny in this car either, so you writing it off as a peice of shit means nothing to me as well. You sir are negative and want to tell everyone why something won't work and to be happy with the factory offerings. In the end there is no point in responding or discussing this point any further because your attitude supports a non-innovative discussion which I have no interest in.
I can confirm I have driven similar model engine etc with Auto and Manual for 4-6 weeks each (they were long term rentals)
The Auto did much worse mileage.
Any real road experience for the other way round ??? Knighshade ??
Re: EPA mileage,
Car and Driver got suspicious and ran same car with different transmissions because they did not believe the EPA ratings.
You know, hundreds of miles on the streets, swapping drivers, rotating the lead.
Guess what, the higher EPA rated car ended up with lower mileage !!!
Now our own IS300 is generally accepted on THIS forum to have 10 -20 BWHP less with the Automatic with engine like for like, ie stock vs stock, I/H/E etc....
Less HP, because of higher transmission losses, Less mpg.
So why is the EPA rating out to lunch, Car and driver explained it, higher losses in the transmission due to high pressure hydraulic pumps used to drive components.
So we have actual experience on the road and theory to back this up. Pretty conclusive I would say.