Date: 05 Nov 2001 17:19:31 -0800 From: Berry Kercheval <berrynopsamh.com> Subject: Re: Does anyone use synthetic oils?
Bruce Bergman <blCHURRObergmannopsamhlink.net> writes: > The cost of having the oil analysis done has to be significantly > cheaper than the materials and labor cost to change the oil. It makes > sense for large engines like the above, but the average car or light > truck takes only 4 to 5 quarts of oil - having the oil changed is far > cheaper than the analysis. Even with synthetic oils it's a wash. Or, the cost of a replacement engine is very high. With an aircraft engine rebuild running $10,000 and up, you can bet I used to analyze by airplane's oil. Especially with a time history you can get early warning of bearing failure when the bearing metals like zinc or molybdenum spike up in the analysis.