67 Riviera 430 Build

Discussion in 'The Bench' started by johnriv67, Oct 8, 2018.

  1. telriv

    telriv Well-Known Member

    Driving for an hour at 20mph is not the same as driving for an hour at 60mph. By the pic it appears the gauge is jumping around. Is it really or just an illusion???
     
  2. johnriv67

    johnriv67 Well-Known Member

    That’s a combo of glare and the flash. The car was off at the time I took the picture. Just wanted to show how it’s mounted
     
  3. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    Yes, drive the car at 60 MPH for 30 minutes in 80+*, and then idle it in gear, and you’ll see your lowest oil pressures.
     
  4. BQUICK

    BQUICK Well-Known Member

    I would run a blend of 10/30 and 20/50 when the weather warms up. Remember 20/50 is just 20 weight oil with viscosity improvers so it doesn't breakdown as much when hot. Also 10/30 will breakdown with time and eventually become a 10w oil....not good for an old school engine like the 430. I myself would rather have a thicker oil and just be careful and warm it up before getting on it. Oil temp gauge is good idea. If you look in owners manuals of older cars they would often recommend 10/30 only up to 60deg after that 20/40 or 20/50 or straight 30.

    I don't see lower than 25 at idle ever on my 430s.
     
    Last edited: Feb 11, 2019
  5. johnriv67

    johnriv67 Well-Known Member

    Ok thanks guys, for the next change I’ll mix 2 quarts 20/50 and 3 quarts 10/30. Does that make sense for you guys? Is that how you’d do it?
     
  6. BQUICK

    BQUICK Well-Known Member

    I'm assuming your bottom end is original....right? If so, who knows what clearances are or wear that exits. The slightly heavier oil will protect better...hell in the "old days" we would toss in a can of thick STP...kept a lot of high mileage mills going...coated parts and thickened oil....
     
    johnriv67 likes this.
  7. johnriv67

    johnriv67 Well-Known Member

    So maybe 3 quarts of 20/50 haha. I’ll look for another amazon deal.

    It’s still a screaming deal for 6 quarts so I bought one case of 20/50. There’s many things to skimp on, but not oil
     
    Last edited: Feb 11, 2019
  8. telriv

    telriv Well-Known Member

    Bringing it up again, how about 15/40 or 15/50????
     
  9. johnriv67

    johnriv67 Well-Known Member

    Man the TA phone line is busy today, exhaust and fuel pump ordered. Back to living on ramen and drinking Natty light

    I also can’t wait to, once I have confirmed I have great oil pressure at idle, turn down the idle to its barely running and then cruise into car meets lol
     
    Last edited: Feb 18, 2019 at 4:12 PM

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