Jump to content
SAU Community
  • Welcome to SAU Community

    Welcome to SAU Community, like most online communities you must register to view or post in our community, but don't worry this is a simple free process that requires minimal information for you to signup. Be apart of SAU Community by signing in or creating an account.

    • Start new topics and reply to others
    • Subscribe to topics and forums to get email updates
    • Get your own profile page, build reputation and make new friends
    • Send personal messages to other members.
    • See fewer ads!

    Consider joining our newsletter for the latest content updates

    Click here to register

Rb30 25 neo oil?

Recommended Posts

Just wanted to know what oil everyone else is running in their 30 25 neo's.

I use penrite hpr5 as per the neo guidelines. 

But wounding if i should go up to hpr 10 making 500rwhp. 

Link to comment
Share on other sites

9 hours ago, lcxu105 said:

Why so heavy

With that much hp you're not likely to treat it nicely.  Plenty of revs and load, use the grunt.  So the mains and big ends are going to want film strength to carry the load of those cylinder pressures.

And you have solid lifters, no hydraulics to complain about oil thickness on cold start.

What did your engine builder recommend?

Link to comment
Share on other sites

Just a case of using what works really.  With the ready availability of accurate/reliable oil pressure sensors to input into ECU, and easy/cheap oil sample analysis I'd suggest not too hard to monitor and change if required.

People in areas where winter temps are in single figures overnight might want the viscosity numbers lower esp for daily driving and cold startups.  My hydraulic non-Neo head has had no issues with a 15w50, or even the HPR30 with initial startups.  Queensland temps though.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Create New...