Extended oil changes
#41
04-21-2018, 11:15 AM
Road Warrior
I don't get it either.....oil is "cheap" in the big picture of owning an expensive motorcycle. It's not that oil "wears out" or fails to lubricate and cool ...it's all the "crud" that oil is also designed to collect and help keep away from the moving parts and thus reduce friction. As you all know, engine oil can contain various metals, water, fuel and other contaminants......changing the oil helps to flush out some of that collected "crud", so why let it float around in your engine any longer than recommended?........In fact, the opposite could be wiser and justifiable...change the engine oil MORE frequently than 5,000 miles.
Even more so the owners manual for Rushmore bikes recommend 5000 miles as the maximum and more frequently under extreme conditions.
The manual describes extreme conditions under Note 4 after the maintenance schedule.
I could change oil on the bike faster, more fun and easier than it takes me to wash the bike.
Last edited by alarmdoug; 04-21-2018 at 11:17 AM.
#42
04-22-2018, 07:56 AM
Road Master
In my opinion the biggest battle we have with these high output twin cam motors is getting them to cool off. I have never owned a Harley that ran so hot. For me, clean quality oil is a must especially in the summer event season where you are stuck in traffic. Saving a few bucks on oil changes makes no sense to me.
#44
04-22-2018, 08:49 AM
Seasoned HDF Member
#45
04-22-2018, 08:53 AM
Grand HDF Member
I personally don't see any reason to extend intervals beyond what the moco has in the maintenance schedule. Use a quality oil and filter at a reasonable interval and I doubt you will ever have an oil related issue. I usually do the primary at the same time as the engine oil. Not that much more oil and that little area can get pretty cruddy. Transmission I let go quite awhile but still change it earlier than recommended.
Lot's of folks shorten the intervals. Nothing wrong with that. Their bike & $$. It's damn sure not gonna hurt the bike.
Lot's of folks shorten the intervals. Nothing wrong with that. Their bike & $$. It's damn sure not gonna hurt the bike.
#46
04-22-2018, 09:01 AM
Road Warrior
#47
04-22-2018, 09:28 AM
Stellar HDF Member
I run Mobil 1 syn in my motor and change it every 3000-3500 , overkill . . probable ,I still live by the theory oil is cheap motors are not.
I do run my trans lube 10-12K though, it doesn't suffer from combustion contamination or heat stress like motor oil does. I run Belray or Spectro 75W140 trans lube and their primary specific oil.
I do run my trans lube 10-12K though, it doesn't suffer from combustion contamination or heat stress like motor oil does. I run Belray or Spectro 75W140 trans lube and their primary specific oil.
#48
04-22-2018, 11:41 AM
Is anyone doing extended oil changes? For instance 10k on motor oil, 20k and 20k on primary and tranny? Using Amsoil or Mobil 1? Just wondering if any one actually did it and has any results good or bad. Thanks. Harley says 5 15 and 20 with syn 3. Amsoil say 10 on the oil, 10 on the primary and 20 on the tranny if using their engine oil, primary and transmission fluid. Using the 20/50 in all three holes they say 10/30/20.
dont be cheap
wow
