Oil analysis: 8300 mi on Rotella T6
02-12-2013, 10:16 AM
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Location: Detroit (Rock City); 1990 C4
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Oil analysis: 8300 mi on Rotella T6
Hiyas! Here's a recent oil analysis of the Shell Rotella T6 I'm using in my C4. This oil is available for ~$22/gal at Walmart.
This sample had ~8300 miles on it. My car 'uses' (leaks, mostly) about a quart every 3k miles, and I drive a lot of highway miles. I didn't change the oil or the filter.
Ideally I'd like to pull off 15k change intervals; I took this sample early because I'm taking the car on a 2500 mile road trip next week and wanted to make sure the oil was good. It's holding up well- wear metals are low, plenty of Zn, viscosity is in-spec, and the Total Base Number (reported as Base Number, 5.53) means that there's no danger of acidification. Make-up oil was actually 2.75L.
I don't believe I'll be changing for Brad Penn or Joe Gibbs anytime soon.
This sample had ~8300 miles on it. My car 'uses' (leaks, mostly) about a quart every 3k miles, and I drive a lot of highway miles. I didn't change the oil or the filter.
Ideally I'd like to pull off 15k change intervals; I took this sample early because I'm taking the car on a 2500 mile road trip next week and wanted to make sure the oil was good. It's holding up well- wear metals are low, plenty of Zn, viscosity is in-spec, and the Total Base Number (reported as Base Number, 5.53) means that there's no danger of acidification. Make-up oil was actually 2.75L.
I don't believe I'll be changing for Brad Penn or Joe Gibbs anytime soon.
Last edited by FeralComprehension; 02-12-2013 at 10:19 AM. Reason: more deets!
02-12-2013, 11:02 AM
#2
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That's great info. to have on the engine...I need to do this on my next change.
