| Re: 455 Expected Engine Life [message #360463 is a reply to message #360417] |
Wed, 02 December 2020 09:34   |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
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I have to question why people still flock to 15W-50 oil despite research. Heavier means less oil to final destination as some is diverted a greater % of the time. Also more drag and gear wear along with more frictional heating. Also poorer throw of oil to cyl walls cold or at low RPM.
I also find oil use is not linear. It varies greatly with weather and load conditions. That’s why you should check after each fueling. It may appear to not budge then move downward after a day of headwinds, rolling hills or high temps.
Also, and this could just be confirmation bias, fresh oil seems ti be consumed at a lower rate than oil with over 2000 miles or so on it. You would think the lighter molecular elements would go off after that time and consumption would go down, but I have never found this to be the case.
Also due to fuel rate of almost 2x pass car consumption, I feel 3000 is like 6000 so try to change by 2000 unless on a long trip where not easy to do so. But there the oil time between service is low and it gets drained/filled upon getting home.
John Lebetski
Woodstock, IL
77 Eleganza II
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