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Old 07-30-2014, 09:10 AM   #13 (permalink)
sarguy01
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Join Date: Jan 2010
Location: Virginia Beach
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Mazda5 - '12 Mazda 5
90 day: 25.22 mpg (US)

Big D - '11 Dodge Durango Crew
90 day: 18.75 mpg (US)
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Quote:
Originally Posted by redpoint5 View Post
I was going to sneak in a jab about running a K&N filter until...



Sarguy, I run a Honda 4-cylinder engine 12,000 miles on the same oil, so you should be good. I'd do something about the Si level, and by do something I mean ditch the K&N.

What did the report comments say?
I may get rid of the K&N after my next oil sample.

Here is the comment:
Indeed, the Mobil 1 held up really well for you. The viscosity was fine, insolubles are within limits, and the TBN was good at 3.3 (1.0 is a low reading). Wear metals are fine too, so your engine didn't mind the long oil run one bit. The one weird finding here is silicon, at 68 ppm. If that were abrasive, wear would have been through the roof, so we're thinking this is something that was introduced during the sampling process, or a harmless lube or sealer. It's probably fine, so we'll just see what happens next time.
If you're interested, try for 11,000 miles next time.
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