Yo MetrickBandito,
Whas your poison, 'cause you musta been hit'n again before posting again.
I thought I could butcher postings (ramblings) with poor spelling and run-ons, but YOU my friend have bettered me again. (By the way, my poison is either red wine, rum & coke, whiskey & water, or straight up JD... what's your's?)
And I beg to differ with you.... it doesn't take an oil analysis to know that (YOU ferinstance) live and ride in an area surrounded by sand, or (you ferinstance) live and ride where the temp's can get crazy hot, or (you ferinstance) park where it can get insanely cold at night and HOT the following day, again & again. It doesn't take an oil analysis to know that a high speed run at over 120 mph for an hour at a time may have compromised one's oil.
If YOU wish to subscribe to the notion that mileage, and mileage alone, is the ONLY determining factor for deciding when to change one's oil..... then by all means, don't bother yourself with any needless thought to the conditions (or abuse) your oil has been treated.
They say oil is at it's absolute best for no more than about 2,000 miles, recent rantings by some folk now insist that oil changes performed TOO OFTEN is bad for an engine, and some studies have suggested that recycled oil reprocessed has outperformed fancy synthetics and designer-name oils.
All that I was suggesting in my post, is that people take the initiative to think for themselves and change their oil when they think it needs to be replaced or has been abused/contaminated.
All things considered, if I'm running a semi or synthetic (under ideal conditions) I'll change out my oil every 6,000 miles.... and have been known to go 25,000 miles (Amsoil/BMW). With dino-sludge (under ideal conditions), I change it out every 3,000 miles... the filter every 6,000 miles. If the bike sits for any length of time during the changing of seasons/temps, I disregard the mileage and change it out regardless. If I'm running down to Lancaster through the desert at blatantly illegal speeds to have a beer (or wine, or rum, or gin, or well... you get the picture) with my Bandito Brethren, I'll be changing it sooner than 3,000 miles. If I ride to work daily a mere ten miles, and then home ten miles, and virtually nothing more, I'll change that stuff out much Much MUCH sooner than 3,000 miles.
Common sense, not Gospel (how do you spell gospel/gosple?)
(You should see what I see when I use the Vulcan mind meld grip on my kitties....)