I will check this weekend, I didn't get it whats the IVAC,TB?
Why the gas milage not improved after I did these many changes on my car?
1.Was this Good Milage what I am getting currenlty(21-22 MPG)?
2.I used to travel with my family 95% of my travel on this car,Does this drop any milage?
3.After I updated I didn't get a chance for having fair driving conditions and Weather too, was this causing any problem in getting more Milage?
4. After I change PCV valve does it improve the Gasmilage?
5. Wasn't any of the above brnaded oils won't improve the gas Milage?
Thanks,
lexilove.
You can't really compare summer and winter gas mileage, in my experience - winter driving is always harder on fuel.
My fuel mileage ('93 ES300) always decreases in the winter. I've read that it's because the gasoline sold here in Canada in winter months has a different formulation for winter conditions - easier cold starts, etc. - that results in lower mileage. Don't know if it's true, I haven't done any research on this or anything. But my gas mileage always increases (a little) when the warmer Spring weather returns. Maybe yours will too.
Synthetic engine and trans oil, new plugs, new PCV, etc.... all good for your engine's long-term health. You will be able to keep it longer with few expensive repairs if you keep up the preventive maintenance.
The only other thing I would do is clean the intake and your idle control valve. Lots of posts here on how to do this. Then you're good to go - just drive it and enjoy! See if your fuel mileage improves in the Spring when warm weather returns.
tck...
Thanks TCK, I will do it post the results soon.