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DaddyGlenn DaddyGlenn is offline
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Join Date: Dec 2004
Location: Pittsburgh
Posts: 2,389
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Quote:
Originally Posted by Gabe. View Post
{snip}... damn is that a lot of expensive oil... Here's my tentative plan:
  • Driven BR30 for first 20 minute cam break in, drain
  • Driven BR 15w50 for first round of drives/leaks, drain
  • Driven BR 15w50 for 500 miles, drain
  • Driven GP-1 20w-50 or Driven DT50? Thoughts?

Spending $300-$400 on oil over the first thousand miles seems pretty crazy but after spending this much money on an engine rebuild, seems like reasonable insurance. Is using Driven oil from the beginning a good plan rather than mixing/matching something less expensive?

Am I overthinking this? Thoughts on changing the oil after the first 15-20 miles vs 300-500? When is the best point in time to switch from the BR50 to either GP-1 or DT50?

... {snip}
I think you are right to invest in good oil for break in. The Driven oils are very high in zinc and other anti-wear agents that will get embedded in the metal as you break in the engine.

Granted, it is a different engine, but the advice I got for my 944 track car was to use the BR50 for cam break in and initial run, no more than a couple hours or 200 miles. Then shift to Driven XP4 for remaining engine break in with 500 mile oil change intervals. Once broken in, run Driven HR1 at 3,000 mile (or in my case 100 lap) intervals.
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Glenn
Daily Driver - '78 911SC RoW, Track - '85.1 944
Support vehicle - '00 Suburban 2500 4x4
Wife's - '11 Mini Cooper
Son's - '85.1 944
Old 04-28-2020, 03:33 AM
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