Battery Tender
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Joined: Jul 2003
Posts: 224
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From: Piscataway, NJ
I recommend leaving it as is and connected. Radio code and presets aside, loosening a bolt as compared to unplugging the thing in 2 seconds is much easier IMO. I actually like keeping tabs on my gas mileage and unplugging the battery clears the pcm and resets my trip mileage.
-brian
-brian
Registered User
Joined: Mar 2006
Posts: 87
Likes: 0
From: San Jose, CA
On the my MY06, resetting the pcm will cost you about a tankful before the car feels right again. Also, after a reset, gas milage for the first quarter of a tank or so drops by around 8 mpg, and the car is not very crisp or fun to drive. On the first engine start after a pcm reset, it takes unusually long to start, and when it does you can smell the fumes of running too rich out the tail pipe.
I dunno about previous model years, but if it was me, I'd just leave the battery connected. Unless there is something wrong with the electrical system or there is a high powered aftermarket alarm in there, the tender should do fine for the battery with the minimal load of the parked car.
Edit:
You might consider fuel stabilizer though, bad gas is a big problem.
I dunno about previous model years, but if it was me, I'd just leave the battery connected. Unless there is something wrong with the electrical system or there is a high powered aftermarket alarm in there, the tender should do fine for the battery with the minimal load of the parked car.
Edit:
You might consider fuel stabilizer though, bad gas is a big problem.
Registered User
Joined: Mar 2006
Posts: 87
Likes: 0
From: San Jose, CA
In case you didn't get my edit on the other post, you might consider fuel stabilizer (like Stabil) if you are only going to go thru one or two tankfuls over the next 2 years.
If you don't use stabilizer, then at least keep the car with a fully topped off tank whenever it goes for an extended store, and, be sure to use the best quality name-brand gas you can get.
Edit:
Also you might consider doing an oil change before this prolonged period, unless you've very recently done it. Oil collects combustion acids that are not good for the engine to sit with for a prolonged period.
And when you run the car, make sure you get it fully warmed up in the last drive before parking it for a while as that will help keep moisture out of the oil and engine. You don't want to drive it a very short distance or time and then park it for a long time.
If you don't use stabilizer, then at least keep the car with a fully topped off tank whenever it goes for an extended store, and, be sure to use the best quality name-brand gas you can get.
Edit:
Also you might consider doing an oil change before this prolonged period, unless you've very recently done it. Oil collects combustion acids that are not good for the engine to sit with for a prolonged period.
And when you run the car, make sure you get it fully warmed up in the last drive before parking it for a while as that will help keep moisture out of the oil and engine. You don't want to drive it a very short distance or time and then park it for a long time.
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