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That doesn't make sense to me. With the exception of gross failure, I would expect a vehicle with 150k miles and 500 miles after an oil change to have a much cleaner result than a vehicle with 25k miles and 5000 miles after an oil change. They should ask:
1. Service life
2. Miles since last oil and filter change.
And if they wanted to be real exact, they should ask the brand of oil to factor out the trace metals in it.


What's the difference between 1. and 2. ?
Does your 1. mean the mileage on the unit (engine)?
When I said service miles, I meant the # miles on the current oil sample.

Yes, they do want to know the type of oil, mileage on the engine, mileage on the oil, etc, etc, ... the more info you give them, the better they can relate your sample to relevant data.

In fact, you can (for a small extra fee) send them a sample of virgin oil of the type you are using, and they will also factor this in. If you don't, they will use the average data that they have in their database for your brand of oil.

Check out their website and look at some of the sample analyses they have posted.

I hadn't considered the "hobby" aspect... I guess I've got quite a few thousand dollars worth of "hobby stuff" around here that most ppl would consider useless, frivolous, etc, etc... <img src="/forums/images/graemlins/smile.gif" alt="" />

C/YA!
Jeff
'88 Trooper
2DR LWB 4ZE1 5SP
bone stock DD