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Old 08-11-2010, 07:52 PM   #1 (permalink)
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Join Date: Oct 2009
Location: Texas
Posts: 3,523

The Q Sold - '02 Infiniti Q45 Sport
90 day: 23.08 mpg (US)

blackie - '14 nissan altima sv
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oil analysis at 197,000 miles

I am a big believer in regular oil & filter changes. Several months ago there was a thread about intervals and I realize that everybody has an opinion. I get my oil analysed on a regular basis. As I approached 200,000 I wanted to get a good idea of where I was at on longevity of the engine as far as wear goes. I bought this car at 40,000 miles so I could not effect the breakin wear.
Here is a copy of the report. with the cost to replace this engine being $10-15K, it is worth changing the oil 3-5k.

As an additional note: my bus partner bought a 2007 tahoe used from a chevy dealer. Very clean and a good deal. He drove 3,900 mile (tex to ca to colo to tex) and finally had it changed and got a test sample sent in.
The engine came back with very low wear which was very reasuring, but even better news was that the oil from the dealer still had plenty of 'properties' left in it. Which was an add plus. It meant that the dealer does not cut corners on the quality of the oil they use on cars that they sell as used. (the dealer had show jerry their check list of the service that they do before they put the tahoe uot for sale)

MetroMPG: "Get the MPG gauge - it turns driving into a fuel & money saving game."

First: ScangaugeII

Second: Grille Block

Third: Full underbelly pan

Fourth: rear skirts and 30.4mpg on trip!
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