break - in oil recommendations? - Team Camaro Tech
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post #1 of 9 (permalink) Old Sep 1st, 04, 04:03 PM Thread Starter
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What oil should I use for initial break-in. 383 with flat tappet cam.
Thanks,
Guy
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post #2 of 9 (permalink) Old Sep 1st, 04, 07:30 PM
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I usually use a 20w-50 oil and the Crane break in concentrate, and then drain and put in 10-30 after about an hour of run time....its worked so far!!

Cody
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post #3 of 9 (permalink) Old Sep 1st, 04, 08:03 PM
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30 Wt with the GM parts counter EOS "Engine Oil Suppliment" break-in additive. Maybe run a quart over full during cam break-in if you like.

-Mark.
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post #4 of 9 (permalink) Old Sep 2nd, 04, 02:04 AM
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Whatever oil you use, I agree with Mark, buy two cans of EOS, onr for cam break-in, and the next one for the first 500 mile oil change.

States right on the can -- New camshaft and lifter break-in. Or it use too, they have changed the wording to release them from liability, those dogs!

My opinion, I would use a 10W30 oil with EOS for break-in, drain, change filter, add new 10W30 & EOS. Run for 400-500 miles, change again. Fill with only 10W30. Then enjoy the ride.

After the initial cam break-in, assuming no leaks, fix the ones you do find, valve adjust, if needed, carb adjust, and its first maiden voyage, keep a firm throttle, seat the rings and you should be good to go.

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post #5 of 9 (permalink) Old Sep 2nd, 04, 09:56 AM
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30W or 10w-30w and EOS. I wouldn't walk near it without EOS.

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post #6 of 9 (permalink) Old Sep 2nd, 04, 01:06 PM
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I agree with Mark as well, straight 30wt with a can of EOS. Running a little over full will also help your can survive break in.

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post #7 of 9 (permalink) Old Sep 3rd, 04, 05:51 AM
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Straight weight oil is always a better choice for break in .. go with 30 wt for sure.

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post #8 of 9 (permalink) Old Sep 5th, 04, 01:39 PM Thread Starter
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30 WT and EOS it will be.
Thanks,
Guy
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post #9 of 9 (permalink) Old Sep 6th, 04, 10:50 AM
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This is going to sound really stupid but here it goes. "MAKE SURE YOU HAVE OIL IN IT". It's amazing but I know of people that went to fire an engine up or did fire it with no oil in it. Put a note on over your key that says Check the oil.

Like I said stupid, but after building engines and selling them you see all kinds of things happen. In all what happened was they were excited to get it to fire up. Take your time.

Joe

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