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Old 09-13-2019, 08:41 AM   #6
OldNuc
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Join Date: Apr 2008
Location: Far Southwestern Iowa
Posts: 66,677
 

1998 SC2
Default Re: Which oil for engine break in?

If you built it correctly follow this.

After start.
-If engine running as expected continue to let it sit and idle while you inspect for leaks and other off normal behavior.
-Do not touch the gas!
-Allow to sit and idle until the fan cycles on and off twice.
-Shutdown engine and allow a 30 minute oil drain down time
-Replace the oil and oil filter with a WIX 51516XP or Mobil-1 209 filter and a name brand high quality synthetic blend oil. Valvoline works or Casterol.
-Drive car conservatively, no steady RPM operation and hold max top gear RPM to < ~3000 RPM
-Closely monitor oil level by parking in the exact same spot and checking level after a 6 hour minimum drain down time. Maintain oil level at the Full mark or up to the lower edge of the "U" in full.
-Once it has been established that oil consumption is zero change oil and filter.
-At this point using a high end 100% PAO synthetic oil is the best option.

REWARD EXCELLENCE!

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