I did a few searches and found nothing. Any guidelines or recommendations on which race oil to use with e85 in autoX car? Is Oil dilution a bigger factor with e85? I know RP says XPR will work with ethanol, but unsure of Redline or others. XPR is $17/qt! Any specifics on OCI? Car is 1.8L SC with over 300WHP revving to 9k rpm. Not a ton of time at redline vs. track car.... Thanks in advance!