when to change oil; was: TOY: test

["Kerry White" <kerry_e_white@xxxxxxxxxxx>]

I decide when to change mine by the color. When its black I change it.

In the military the Hummers have vampire pumps that are used to suck a 
sample of oil out, then the oil is sent to a lab to be analyzed (for metal 
dust, water, whatever); then by that they respond saying whether to change 
to oil yet or not.

Going by mileage is ok. But not the best way. Especially when you offroad 
it, your oil is likely contaminated as much in a mile as in 20 highway 
miles. An hour counter like on industrial machines would be better than an 
odometer. But the best way is to change it when its dirty, regardless of 
mileage.

If I'm wrong let me know  :),
Kerry

>
>  So....when do you change your oil? Does it matter?
>
>Ever Learning
>Clint Searcy
>

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