Re: New available motor oil

Posted by todd landis On 2014/7/12 23:08:47

Don't know what is happening in the rest of the country, but here in Las Vegas, at the local Auto Zones, and O'Reillys in the past several weeks, conventional oil is just about gone. Over the past 20 years or so have been using 20-50 Valvoline Racing oil. Which along with the rest around here is gone. So if I change to synthetic, with some Zddp and Marvel, is should the viscosity be the same? Looks like somewhere around 30 weight should be ok. Maybe 40? What you mention now, that scares me the most is the leaking of the rear seal. One of my cars is a 40 super, which has the largest and least support for the rope seal in the rear. Several years ago changed the rear seal, and had to do it three or four times before it stopped leaking. If I change to synthetic may start to leak again. Thanks for all the input.