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Friday, August 14, 2020

Doug's Domain

Doug Vetter, ATP/CFI

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Friday, July 9, 2010

Oil Service and Analysis

(Image: ) Last weekend I conducted another oil service after 4372 miles in service and took a sample to send to Blackstone Labs for analysis. Today I received the analysis and breathed a sigh of relief when the report indicated that lead had dropped to 8 PPM. This isn't quite back to the baseline of 4 PPM yet but any drop in wear metals is a good thing. This means I can put off plans to pull the engine and instead focus on other things including overhauling the accessory section and the front suspension.

Front Suspension Overhaul Plans

And while I'm on the topic of the front suspension overhaul, I figured I'd point out what I plan to do:

Many consider a Z3 steering rack upgrade to be a worthwhile place to spend money, particularly for cars that see track duty, but I'm not sure the benefits outweigh the substantial costs in my case. I'd have to purchase the rack outright since I don't have an identical core, and that would translate into something in the neighborhood of $750. Too rich for my blood right now, but perhaps I'll change my mind once I get into the job.

Mileage: 194050 [Oil Service at 193678], Parts: $45, Labor: $25