Re: [GMCnet] 455 Expected Engine Life [message #360469 is a reply to message #360463] |
Wed, 02 December 2020 10:11 ![Go to previous message Go to previous message](/GMCforum/theme/default/images/up.png) ![Go to next message Go to previous message](/GMCforum/theme/default/images/down.png) |
Mike Kelley
![United States United States](/GMCforum/images/flags/us.png) Messages: 467 Registered: February 2017
Karma:
|
Senior Member |
|
|
Soo John L.:
What oil do you recommend for these GMC’s?
Mike/the Corvair a holic
Sent from my iPhone
> On Dec 2, 2020, at 9:34 AM, John R. Lebetski via Gmclist wrote:
>
> 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
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
|
|
|