whoa! someone else from woodbridge. Im not an expert, im still learning about how cars work, but from what i've read the RP seems to be the most expensive and rare in most towns, and the Mobil1 and Amsoil seem to work perfect for most people. synthetic oil works better than conventional, but if i guess thats what i would lean towards imo

I just changed from Penzoil Full Synthetic to Amsoil.......so far so good!?! The great thing about Amsoil...when done right with the filter and everything, the oil only has to be changed every 10K Kms!?!? Oh and BTW my stang has 190 000Km.....

I still use dinosaur oil and it works for me.

Hi,

I use only full synthetic on my 04. I noticed better response when I converted it over and a bit better gas milage. Will I ever go back to dino oil? NEVER! Oh and I use Castrol Syntech.

Can you go from Synthetic back to non synthetic without any damage?

I got this from another site,can't remember where though LOL
Truth in Advertising: BP v. Royal Purple

I use royal purple in my cars. It's worth the bucks. But just like everything else someone will always tell you differently. It really comes down to personal preferance. Try it.

It's true.Everyone seems to have the best,or trying knock the other guy down.I don't think most of us have our engines last long enough (like to rebuild,over,and over),or keep our rides long enough to worry about the longtivity of the engine LOL.
I think the best way to keep the engine healthy,is sticking to the required oil change intervals,and use what you feel is right for you,and your ride.