my friend is an idiot... he filled up his bike with 10w 40 full synthetic motor oil, but needed abouyt 1/2 a quart more... so he topped off with 20w 40 dino oil!
does he need to drain it all and start over with new oil/filter, or is he OK? he already rode about 100-150 miles on the mix... i told him to drain and re fill the oil, but we are having rain for awhile so i figured i'd get some other popinions as there is no rush...
does he need to drain it all and start over with new oil/filter, or is he OK? he already rode about 100-150 miles on the mix... i told him to drain and re fill the oil, but we are having rain for awhile so i figured i'd get some other popinions as there is no rush...