I've got a couple of quick questions for you.

First, does tire pressure make a big difference in fuel economy? I just bought a tire pressure guage and I was shocked to find it read around 24psi for my tires. I've got the LT with 17" rims.

Secondly, since this is my first brand new car I want to control what goes in it. I'd love to be able to do my own oil changes but am worried that I may be voiding the warranty. I know that you don't have to take it to a dealer as the other oil change places will have documentation of mileage on the receipts. Can I still do my own oil changes without affecting the warranty?

Looking forward to your opinions. Thanks!

 

Yes and you should be at 35 psi.

Yes.

 

If you do your own oil changes, just make sure to keep a record of mileage with your receipts. You'll be OK.

 

Isn't tire pressure in the DIC, or is that new for 08's.

 

It's only on the 08s. Us 06 and 07 owners don't have a tire pressure monitor.

 

This is all that needs to be done? I wouldn't want any problems should I need warranty work. (Not that I'm anticipating any!).

 

My driving is primarily highway,58 miles each way to work,and I have always run about 5 psi over the recomended pressure in my cars and get good mileage with it. 26 in town and have seen 34 on the highway,the DIC averages it out to 31 or so overall.

As far as oil I`ve always done my own except the times for a change falling on a cold cold time of the year. Then I farm it out.

 

Change your own oil if you want to but listen to all these people and KEEP ALL RECEIPTS for the oil and filters and write the dates and mileage on them. Also don't forget that alot of these new receipts are being printed on heat transfer paper so the writing will dissappear if they get old or hot, so make a copy of them.
Mitsubishi Screwed my on a huge engine warranty and the only reason they said they would not cover it is because I work at an auto parts store and do all my own oil changes and I did not keep my receipts.
Old habits die hard I guess because again I'm not saving them, maybe I'll start now.

 

I want to do my own, but for the life of me I cannot fine the receipt for the two 5qt jugs of Pennzoil Platinum that I bought (also a cordless drill on that receipt as well).

I have every other receipt except that one...grrr.

 

I change my oil but probably don't have all the receipts...I don't expect the engine to fry in this car due to a lube problem...I keep an Excel Spreadsheet of my changes and I hoard oil so the dates of my changes and oil purchases could be a year apart.

Change your own oil...there is no easier engine in the world to change your own oil than on the Ecotec



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