On Fri, 13 Sep 2002, Vin 5386 wrote: > Okay first off, Has anyone had success running synthetic oil in the PRV? > Not sure how the engine was designed if it could handel it. I run Amsoil 10w30 synthetic in mine, with no problems. There's no reason I know of you shouldn't run synthetic. I use synthetic in all my cars. I think it's worth the extra expense. Historically, synthetic oil has been known for causing tiny (or even unnorticeable) oil leaks to get much worse, because of its uniform molecular structure (makes a lot easier to wick through small holes), but all modern synthetics have additives that prevent this problem. -andrew #4115 Houston TX