much easier and a little stronger. Am not usually susceptible to placebo effect. Is this possible, scientifically? Thanks.

 

i felt the car run a bit smoother too with royal purple.

 

Be sure to do UOAs on it. Ive noticed w/ RP normal blends that wear numbers (copper, lead, and iron) are noticably higher than a comperable M1 0w-20

Check it out at www.bobistheoilguy.com and go to Used Oil Analysis

 

Cool, thanks for the link and reponse of confirmation. I noticed the same thing with Royal Purple change over in my ex-WRX, FWIW.

 

Royal Purple website states that you should wait until at least 2000 miles before switching to RP, or until your first oil change interval. Not trying to be a critic, but I know several others on this website are asking time after time when they should switch to synthetic. BTW, I am glad to here that you are having great luck with RP, I am thinking of switching out my engine, tranny and gear oil with RP soon.

 

once mine hit 3k, i put in rp. i think it runs smoother but there's really not any noticable rev difference. i'm waiting to get the tilton 8lb combo for that.

 

I would have stayed with dino till at least 7500 miles. VQ seems to like it that way. See http://www.bobistheoilguy.com/