Any thought on using Mobil 1300S or Delo 400 15W-40 HD Diesel engine oil in place of 20W-50 Harly Davidson brand oil. I would like to use it year round (march through november) with temp range of 35 to 95 degrees F. I suspect it is as good if not better oil and during the colder months would be better for cold starting. Any concern with not using 20W-50 above 70 degrees F.
Thanks
Wayne
Thanks
Wayne