Yeppers, the best "advice" for premix I know of is to simply use w/e the oil manufacturer recommends for their own product, a hair more ifn yer worried
As for "the longest straight shot you've ever ridden" ...well, that's a bit tricky as we don't believe in straight (or smooth) roads 'round here Srsly tho, 'bout 150 miles - but that was an exception, I've usually about a 100 mile range before I'm whipped & beaten even on my comfy cruiser w/a shift kit... much as I love these lil two smokers, that's pretty much why I'm doin' the four stroke recumbent thing now *shrug* I'll still ride the heck outa my two smokers ofc - but srs distance runs on 'em are a bit demanding...
As for "the longest straight shot you've ever ridden" ...well, that's a bit tricky as we don't believe in straight (or smooth) roads 'round here Srsly tho, 'bout 150 miles - but that was an exception, I've usually about a 100 mile range before I'm whipped & beaten even on my comfy cruiser w/a shift kit... much as I love these lil two smokers, that's pretty much why I'm doin' the four stroke recumbent thing now *shrug* I'll still ride the heck outa my two smokers ofc - but srs distance runs on 'em are a bit demanding...