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#1 |
Registered User
Join Date: Jan 2012
Location: Nanaimo Bc.
Posts: 4
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Break in oil on 2nd change?
Hello Chevy truck forum members!
Edit: The project is a 1971 GMC 3/4 long box big window., the motor is a 87-95 chevy 350 After a few months of viewing this forum as a guest (and being helped a lot by the posts, thanks!) I recently joined and I have a first time engine building question. The engine in question is a rebuilt 350 with roller every thing, so I'm not worried about cam break in, and with all the conflicting engine break-in info I've come up with a plan for break-in that should work for me. I plan on using Edelbrock engine break in oil for the first step of break in as almost all the after market parts are edelbrock and it's a company I trust. The question, After the first oil change I plan after 30-40 miles of break-in should I refill with the same break-in oil for the 2nd change? or go to high quality old school oil? I'm thinking about using the Edelbrock break in oil for the 2nd fill. I guess my point is after the tender first break-in would a little less protection help or hinder the smoothing of machined parts? any advice would be of great value to me Thanks. Dean Edit: I think I posted this on the wrong section. Sorry, I'm new to forums. Can this post be moved to the correct section of the forum or deleted? Last edited by Reliant; 01-18-2012 at 11:41 AM. Reason: Posted on wrong forum |
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#2 |
Grandpa in the rustmobile...
Join Date: Nov 2008
Location: Spokane WA/Viola TN
Posts: 11,422
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Re: Break in oil on 2nd change?
Ttt
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John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4 |
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#3 |
Registered User
![]() Join Date: Apr 2008
Location: San Diego California
Posts: 1,316
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Re: Break in oil on 2nd change?
I have a 69 C20 converted to a C10 with a '92 4 bolt main good Wrench 350 that i just rebuilt with a complete Crower roller valve train, the council I got from the guys who are a lot smarter than me on this stuff say that break in oil for the first 100 miles then oil of my choice from then on Install a magnetic oil plug just in case. I am going to run Brad Penn oil in it for the life of the engine, Pennsylvania crude has long been tauted as being above average and is recommended by Crower. I like the fact that it is made right here in the USA and it is formulated for high rev engines. Not that I am going to be racing it that much but I like the fact that it is not going to be breaking down from any driving I will be doing.
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I'd rather attempt something great and fail.. than try something ordinary and succeed. Norman Vincent Peale Project: Barn Raising http://67-72chevytrucks.com/vboard/s...d.php?t=414961 Project: 30 Be Low https://67-72chevytrucks.com/vboard/...d.php?t=830583 |
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#4 |
Registered User
Join Date: Jan 2003
Location: Safford,AZ
Posts: 3,612
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Re: Break in oil on 2nd change?
If its a roller cam, you really don't need to break it in, however, imo it never hurts to pamper your investment.
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#5 |
Registered User
Join Date: Jan 2012
Location: Nanaimo Bc.
Posts: 4
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Re: Break in oil on 2nd change?
Ok. That's close enough to the answer I was looking for. Break-in oil for 40ish miles and again for another 60ish. I don't mind changing the oil often because $60 is better than metal in the oil, but if it's over-kill I won't do it.
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#6 |
Cantankerous Geezer
Join Date: Aug 2002
Location: Bel Aire, KS
Posts: 6,264
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Re: Break in oil on 2nd change?
With a roller cam you still need to seat the rings. We used to tell people to change the break-in oil at 300-500 miles, which was mainly for allowing the additives to assist in seating the rings. Even with flat tappet cams the period for that is minimal, 20-30 minutes.
After the 300 mile period the break-in oil has done it's work and you are ready for regular oil. You might call Edelbrock tech and ask their advice. They will know what the latest advice is.
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Fred There is no such thing as too much cam...just not enough engine. ![]() |
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#7 | |
Registered User
Join Date: Jul 2010
Location: MD
Posts: 1,937
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Re: Break in oil on 2nd change?
Quote:
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1969 c-10 Step Side Long Bed. I-6 250cid = ![]() |
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#8 |
Registered User
Join Date: Jan 2012
Location: Nanaimo Bc.
Posts: 4
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Re: Break in oil on 2nd change?
Thank you all for your input!
The plan will be to use break-in oil for 500 miles regardless of how often I decide to change the oil. Then switch to a synthetic blend for another 500 then full synthetic for the rest of it's life. I hope to unload photos of my project soon. I missed a lot of steps in it's progression though, and I need to find out how to upload photos on a forum. Thanks again for solving my problem, i'd say case closed. Until some thing else creeps up! |
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#9 | |
Cantankerous Geezer
Join Date: Aug 2002
Location: Bel Aire, KS
Posts: 6,264
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Re: Break in oil on 2nd change?
Quote:
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Fred There is no such thing as too much cam...just not enough engine. ![]() |
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#10 |
Registered User
Join Date: Jan 2003
Location: Safford,AZ
Posts: 3,612
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Re: Break in oil on 2nd change?
Take a picture.
upload picture(s) to a host -photobucket, imageshack, etc when you go to share, each picture will have a IMG tag for you to share post the tag here in your post [ IMG] Reliantspictures com/engine [/IMG] and your picture appears ![]() ![]() |
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#11 |
Registered User
![]() Join Date: Apr 2008
Location: San Diego California
Posts: 1,316
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Re: Break in oil on 2nd change?
Crower does not recomend any of the synthetic brands, only the real stuff so that is what I am going with.
__________________
I'd rather attempt something great and fail.. than try something ordinary and succeed. Norman Vincent Peale Project: Barn Raising http://67-72chevytrucks.com/vboard/s...d.php?t=414961 Project: 30 Be Low https://67-72chevytrucks.com/vboard/...d.php?t=830583 |
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#12 |
Registered User
Join Date: Jan 2012
Location: Leesville, LA
Posts: 32
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Re: Break in oil on 2nd change?
My machine shop swears by rotella t 15-40
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