How is CA 198 from California I 5 to CA 101

I've heard that for several miles over the top the road is dirt. Not a pretty picture for a Class A. Guessing you are heading north on 101? I'd go north on 5 to 156 to 101 in Gilroy. If going south, take 41 to 46 to 101. DO NOT take the 41 left turn from 46 that a GPS will show you about 20 miles from Paso Robles. Go all the way to Paso as 41 is another narrow road not advisable for a Class A.