Zinc Rich Oil for Flat Tappet Cams

Mopar General Discussions

  1. QuickDart360

    QuickDart360 Well-Known Member

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    Ok everyone! I know this has been beat to a pulp. But currently what oil preferably conventional is good enough to run in a 360 with stock clearances? I have been using 30 weight vr-1. But need other sources of oil please!!:)
     
  2. d55dave

    d55dave Well-Known Member

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    I use shell rotella t 15w40 with a zinc additive. It is affordable, I switched to it 15 years ago after wiping out a 509 cam with synthetic and no additive. I have had no issues in many different flat tappet hydraulic engines, big and small block with cams up to 580 lift with proper valve springs.
     
    Last edited: Dec 8, 2018
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    • Plymouth 65

      Plymouth 65 Floorable Deplorable

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      Mobile or Valvoline conventional 10-30 w/zinc additive. 65'
       
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      • RustyRatRod

        RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

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        I use Lucas 10/30 Hot Rod oil in my 75 Ford Truck. 2400 PPM of zinc.
         
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        • toolmanmike

          toolmanmike FABO MODERATOR Staff Member FABO Gold Member

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          The last couple years I have been using Conventional Valvoline and Rislone Zinc additive. rislone.jpg
           
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          • jtkaaa07

            jtkaaa07 BossMan

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            This is what everyone around us uses, great stuff, our local engine builder sells it . Has high zinc for flat tapper cams

            035112ED-6279-4FFD-B451-4B2D764E98DD.jpeg
             
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            • dodge71demon

              dodge71demon Well-Known Member

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              • 72Dart6pack

                72Dart6pack Harder Better Faster Stronger.

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                You can never have enough zinc. 5000 ppm is a good start.
                 
              • SGBARRACUDA

                SGBARRACUDA ROY FABO Gold Member

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                I use Lucas Hot Rod 10-30 and 10-40 in both my Mopars. Even thou my 416 is a solid roller.
                 
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                • 4spdragtop

                  4spdragtop FABO Gold Member FABO Gold Member

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                  I use Rotella T 15w40 and Lucas zinc as well in our 67 273. 5 gallon pail of Rotella is $60-70 here.
                   
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                  • QuickDart360

                    QuickDart360 Well-Known Member

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                    Does shell still have sufficient zinc?
                     
                  • TF360

                    TF360 Well-Known Member

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                    I use Lucas Hotrod oil
                     
                  • QuickDart360

                    QuickDart360 Well-Known Member

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                    I have also wondered of STP oil additive in the blue bottle. If it has the claimed zinc in it.
                     
                  • 4spdragtop

                    4spdragtop FABO Gold Member FABO Gold Member

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                    It used to, not sure what levels it has now? We have always used the zinc additive since 2012.
                     
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                    • jimjimjimmy

                      jimjimjimmy lobsterman FABO Gold Member

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                      I was talking with the shell rep last April he told me 1800 ppm min I use it in everything including my r3 sft smallblock 9 years no sign of ware on the cam yet .
                       
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                      • Ottmundr

                        Ottmundr 68 Fastback

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                        I use royal purple HPS 20w50.
                         
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                        • Mattax

                          Mattax Just the facts, ma'am FABO Gold Member

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                          If no cats, Brad Penn 10W-30, or 5W-30, 0W-30 are all good alternatives.
                          Really, the priority ought to be the right viscosity for the clearances and the engine termperatures. Then the base stock, and additive packages for the use and spring pressures. If its burning oil, or seeing pressure drop on long highway runs, then try multigrade 40.
                           
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                          • QuickDart360

                            QuickDart360 Well-Known Member

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                            Luckily doesn't seem to use any oil or smoke. Forgot about Brad Penn!
                             
                          • 70aarcuda

                            70aarcuda Master Hoader of SBM FABO Gold Member

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                            • Dusterdenovo

                              Dusterdenovo Contentedly Old School

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                              Lucas Hot Rod & Classic 10W-30
                               
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                              • pittsburghracer

                                pittsburghracer FABO Gold Member FABO Gold Member

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                                10-30 Brad Penn user here and have been for years. I have been also adding a zinc additive from Summit for my .650 solid lifter cam for extra insurance
                                 
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                                • Mattax

                                  Mattax Just the facts, ma'am FABO Gold Member

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                                  "add this to any 5 qts of oil you are good to go....."

                                  An engine really will last longest with the right mix of additives for the oil, engine and use. Adding excess ZDDP is not a good idea, and adding to an oil that doesn't use it at all is probably a bad idea. If your going to add ZDDP, add it to an oil that's already has decent amount. At least that way you know its part of the formulation. Try not to exceed 1400 ppm Zn or Phos.
                                   
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                                  • 70aarcuda

                                    70aarcuda Master Hoader of SBM FABO Gold Member

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                                    Do what ever you want..I have doing this for upteen years....use in my street car with hydraulic cam and use in all bracket cars with solid lifters and hughes flat tappet cams.....
                                     
                                  • 318willrun

                                    318willrun Utube channel 318willrun

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                                    Just my opinion, too much zinc has it's down sides as well. Spring pressure and engine use plays a part, but in a average street engine 1300 -1500 ppm serves just fine. That's about what the oil had back in the day. The rest of todays oils are better - minus the zinc.

                                    I've used ZDDP issue free. I added it to 10w-30 QS.

                                    Other options to the OP are 15w-50 full synthetic Mobil racing oil. Sold at Walmarts everywhere. I'm trying this in my '77 ramcharger. Just went on a big vacation in it (went through 9 states and over 3700 miles) and it purrs like a kitten.
                                     
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                                    • RustyRatRod

                                      RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

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                                      Says who? I would like to see your source please.
                                       
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