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[MontyB]

Well, to give credit where credits due.
When "sadunbar" says he uses Redline I figure I have no choice.

 

SBB

Don't never doubt SBB!   He got me started on Redline about 6 months ago and my SEUC  has never been happier.  Course it works best in Silver & Blue bikes.  Just sayin'


BTW, RacerParts has the cheapest shipping I've  found...   http://www.racerpartswholesale.com/policies

[tjstreetglide]

What about the oil and air filters? What do you all use?

[Sklywag]

Red Line 20-60 & a HD filter

[Talon]

I use K&N for both.

Craig

[DESERTBEAR54]

Amsoil 20/50 in the motor and now Redline in P & T and a K&N Heavy Breather Intake Filter.

[SERK3]

Redline 20W60, HD oil filter, K&N air cleaner

[jug-head]

Guess I'm the turd in the punch bowl. I use single weight "shell rotella" in the engine, the thickness depending on the weather with a KN oil filter. The trans gets 75w90 in the winter and 75w140 in the summer. The primary works best with automatic transmission fluid. Currently ford type F. The Harley engine is rather forgiving of engine oil, but modern automotive oil is short on extreme pressure additives due to catalytic converters. This is why I use diesel oil as called for in the harley manual. I ride so much that after 100,000 miles I can rebuild an engine cheaper than the cost of "high dollar" oil changes.

[Sapper6]

OK, religion, politics, and oil products are difficult topics to tackle.  I'm not from the "show me" state but show me.  Which motor oil gives me the best wear protection and cooler running temps   Same for gear and crank case.  IMO all synthetics, ah...........................I'm going to do an extensive online search for unbiased, appropriate, real world test results.  Hell, I'm a doctor not an oil chemist 

Mark,

If you really want to find analysis on the viscosity breakdown and other property specific information there are some pretty good threads here, like this one:
http://www.cvoharley.com/smf/index.php?topic=41093.msg630409#msg630409

In the end I just PM'd OldLefty and asked what he used.  Generally what I've found is that most of the products we debate here are superior and only marginally different.

Redline Heavy shockproof in the Tranny helping find neutral, and getting rid of noises or the clunk won't show up in the oil analysis though.  You just have to read the threads to know that most people do report that it fixes those issues.

A bunch of guys here will also tell you to just run ATF in the primary.

I've got my own plan for engine oil, but personally don't see anything wrong with Mobile 1 as it has the same base as Amsoil, but is missing just a bit of the additive package, and performs similarly in analysis.  Generally it will get changed more often than is needed as well.