Okay just a curious question. Advanced Auto has a sale for Syntec 5w-20 for $3.97 so I was wondering how good is it. Would it be ok for 5-8k changes? Or should I be less stingy and get M1 for $4.88 instead. I posted a thread a few days ago concerning mixing different oils but I decided to go either synthetic or dino instead of mixing. Oh yeah its a Honda d17 non vtec in a Civic. I didn't find much info using the search. Thanks in advance.