Wassup guys my 06 is350 is wasting way too much gas. I do a lot of city driving but I feel that is wasting way to much gas. When I fill up the tank I get 220, and city driving I get 10mpg 12 sometimes. I have a fujita intake and a greddy sp2 exhaust and I do not drive aggressive at all. So how can I improve my mpg?
Lexus Champion
you get 10-12?!?!?..something's most definitely wrong...i get around 19 even if it's entirely city :\ maybe go get it checked out at a dealership?
Pit Crew
yeah, something's most definitely wrong
i have an 06 IS350 with JoeZ intake and Greddy exhaust and i'm averaging 22.6 mpg, combination city/hwy
i have an 06 IS350 with JoeZ intake and Greddy exhaust and i'm averaging 22.6 mpg, combination city/hwy
How many miles on your car? are you consistent with your maintenance? you may think you're babying your car from stoplight to stoplight but you'd be surprised at what other people might think when riding with you. What I mean is we all have our own standards about driving habits.
Lexus Test Driver
Quote:
sell it and buy a hs or prius.Originally Posted by Rolando
Wassup guys my 06 is350 is wasting way too much gas. I do a lot of city driving but I feel that is wasting way to much gas. When I fill up the tank I get 220, and city driving I get 10mpg 12 sometimes. I have a fujita intake and a greddy sp2 exhaust and I do not drive aggressive at all. So how can I improve my mpg?
Driver
Hmm, I drive 75% city and tend to get on it here and there, so I average about 16-17 mpg when not on the freeway. The cars throttle response "learns" your driving habits so if you want to start from scratch disconnect the battery for 10-15 minutes to re-set this, might help. My car tends to wait longer to shift and so on because it assumes I will want the quick response, and usually it is correct 

I barely pass 3k maybe once or twice a week ill rev it up to 5k so I can hear the intake. The car has 80k now I bought the car when it had 60k. I change the oil every 4k with mobil 1 synthetic
Pole Position
to get around 10 mpg, you have to be mad flooring it. i think you should go check it out at the dealership
Lexus Test Driver
I see you're in NY. The formulation of gas in winter in cold weather states is more oxygenated, and can result in as much as a 10% drop in mpg. Other possible reasons:
- Do you need spark plugs? Fouled plugs can cause bad gas mileage;
- Tire pressures lower in colder weather;
- Check to make sure you don't have a brake pad dragging (seriously - I've actually seen this happen);
- Are you warming up the car for an extended period of time? That can contribute to lower mileage as well;
- A dirty air filter can negatively affect mileage.
There are literally hundreds of things that can affect mileage, but maintenance items and the way you drive should be at the top of the list.
- Do you need spark plugs? Fouled plugs can cause bad gas mileage;
- Tire pressures lower in colder weather;
- Check to make sure you don't have a brake pad dragging (seriously - I've actually seen this happen);
- Are you warming up the car for an extended period of time? That can contribute to lower mileage as well;
- A dirty air filter can negatively affect mileage.
There are literally hundreds of things that can affect mileage, but maintenance items and the way you drive should be at the top of the list.
Lexus Fanatic
Quote:
yea like being overweight and driving your overweight friends around Originally Posted by 15951
...There are literally hundreds of things that can affect mileage...

Lexus Test Driver
you probably warm up ur car for 5mins, drive to your friends wait for them for 10mins and drive some wait for your other friends for 5mins, double park buy some food for 5mins?? just wondering
Umm no that would just be corny for that I would take the train. I mostly be by myself in the car. I guess I'm going to buy new spark plugs because everything else is on point possibly change my oil to 0w-30
Pole Position
spark plugs will not drop your mpg all way down to 10 mpg.
theres no easy way to say this, but your car is going to blow up
theres no easy way to say this, but your car is going to blow up






