So here's my dilemma: I need an oil change, but due to a lack of funds I can't afford my usual Royal Purple. The car is an 03 LX w/aprox 38k on it, and I have always used Royal Purple synthetic since I bought it brand new 2+ years ago. Are there any problems switching from synthetic to regular oil after running synthetic for this long? Will there be any problems switching back? Thanks guys.

 

no problems switching from synthetic to regular or back again....the problems come when you change viscosities. Stay with the same weight oil and you'll be fine.

 

Right on. Thanks again, sir!