These rigs do fine on quality conventional oil FOR MOTORCYCLES, don't use the car stuff. That said, I run Valvoline 4T full synthetic motorcycle oil in my 2008 Tourist and the 2010 Patrol. I do not see it as that much more expensive and I understand synthetic oil is "controlled" conventional oil where all of the molecules are the same (in theory) vs. conventional oil where many molecules are not "perfect". I figure for the price difference, why not give it the oil where every molecule meets spec? As for leaks... the 2008 Tourist was not leaking in October 2015 when I bought it, I changed the oil the first week I had it, now a few thousand miles later, still no leaks. For the Patrol, it was dropping oil pretty bad at first, after 1000 miles is still leaks but now leaks less than when I got it.
One thing synthetic oil does do is clean. If you have gummed up crud preventing an oil leak, synthetic may just clear that out and start a leak. But the "leak" was there before you added synthetic oil, just stopped up.
This should go in the oil threads, maybe an admin will move it.
Also... ask 3 Ural owners about oil and you're going to get 6 opinions.
2008 - Tourist - "Ursula" / 30mpg / 32k as of 9/2017
2010 - Patrol - "The Rattler" / 32 mpg / 53k as of 9/2017
K28 tires on both rigs, pusher gets about 6000 miles give or take.
3/8" toe in and 2.5 degree lean
- Give a bat a home!