Well, it seems my Subaru likes Formula Shell...or at least the blend of FS and old Pennzoil conventional that it is currently running. Definitely quieter at start up and idle than previous, although another change was oil filters, as I found the one I was using did not have an ADBV or come anywhere close to Subaru bypass specs.
So, for those who run Formula Shell, where do you find it? I usually only see it at Ace/Walgreens/etc for prices I would pay for M1 and PP at Walmart. I just picked up the FS last time because I didn't have enough Pennzoil conventional for a fill and the FS was on $1.99/quart sale that week.
So, for those who run Formula Shell, where do you find it? I usually only see it at Ace/Walgreens/etc for prices I would pay for M1 and PP at Walmart. I just picked up the FS last time because I didn't have enough Pennzoil conventional for a fill and the FS was on $1.99/quart sale that week.