Royal purple is the stuff and it's about $6 per quart ob/pdx

 

seems like a bunch of you use synthetic...is that mostly because your running a turbo?

 

not all are running turbos. most on here are N/A, but like the added benefits of using synthetic anyway. my next oil change is due shortly after I get back up to my hometown. I, like many others, will be switching to synthetic.

 

5w-30 winter and 10w-30 summer both Mobil 1 5000 Clean.

 

5w30 Exxon, but I'm switching to something else, not synthetic though.

 

I have a 99 si it uses 5w-30
I guess cause its a B-series

 

99 ex, D16Y8, i use 5w30 also

I usually use quaker state but thinking about using Royal Purple for my next change.