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#1
01-27-2023, 07:14 PM
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After break in how often
After break in I am going to drain the oil and cut open the filter. If all is good I’m gonna refill with more break in oil and run 500 miles then change again. Should I change it at 1500 after that or what. My regular interval is 3000 but I just don’t want to switch too soon. How long do I run break in oil?
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
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#2
01-27-2023, 07:40 PM
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Hmm…not sure I would run break in oil after the break in?
I’ve always dumped the break in oil after break in, filled with oil of choice and change again at 500-1000 miles or so, take a close look and fill again with oil of choice and run to my preferred change interval.
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71 GTO, 463, KRE 295 cfm heads ported by SD Performance, RPM intake, Qjet, Dougs Headers, Comp cams HR 246/252 ...11 to 1 , 3.55 cogs, 3985lbs.....day three- 11.04 at 120mph ....1.53 60', 6.98 1/8 mile |
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#3
01-27-2023, 08:06 PM
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I figured it was 300 miles or 5 hours of mostly increasing enthusiastic runtime. As for me, after that it seems random intervals between 3,000 thru 10,000 depending on the tomato crop yield.
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#4
01-27-2023, 08:16 PM
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Is the builder doing break in for you?
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Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears '69 LeMans Vert, 350, #47 heads: Non-running project |
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#5
01-27-2023, 08:33 PM
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Quote:
__________________
468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
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#6
01-27-2023, 09:42 PM
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Is he installing the same piston rings?
__________________
Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears '69 LeMans Vert, 350, #47 heads: Non-running project |
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#7
01-28-2023, 02:05 PM
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Break in OIL has ZERO detergents...... similar to old school straight 30 weight 50 years ago.
Detergent can clean the cam ( and Rings) too much during first few hundred miles. This is why Break in oil is a MUST. NO, .......Zinc in regular or synthetic oil is NOT Break in oil... IF you do NOT overheat, you can run modern break in oil for the whole first cycle of 3-5K but you must check the level every few hundred miles. Break in oil does NOT remove combustion contaminates, so you should then switch to a modern oil with added Zinc if you have flat tappets. So your builder "broke in the cam". Still not a bad idea to run the break in oil as cams harden more through engine heat cycles.
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"The Future Belongs to those who are STILL Willing to get their Hands Dirty" .. my Grandfather |
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#8
02-08-2023, 03:24 PM
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After talking to the people at Lucas they said it would be fine to run the break in oil after initial change for one more round so I will do that but should I change it at 500 or 1000 miles cause they were indifferent on that question.
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
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