Break-in oil

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Sep 7, 2016 | 11:11 AM

#21

Kubs

Le Mans Master

Joined: Oct 2007

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From: Akron Ohio

2025 Corvette of the Year Finalist - Modified

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St. Jude Donor '09-'10-'11

I use AMSOIL break in oil for fresh motors, and all other AMSOIL products in everything I own. I have always had great results from their products.

Sep 7, 2016 | 05:25 PM

#22

Street Rat

Le Mans Master

Joined: Aug 2010

Posts: 5,339

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From: Central Texas

I used the Brad Penn Break in oil. Then I went with the BP 10w30 after the break in period. I have since changed to fully synthetic Amsoil Z-Rod 10w30.

Sep 7, 2016 | 06:38 PM

#23

DUB

Race Director

Joined: Apr 2009

Posts: 19,294

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From: Charlotte NC

Quote:

Originally Posted by Duntov

DUB, I read the oil thread and had over load on the oil choices and left more questions than answers. I'm looking for something that is mostly available and that leaves Amsoil or Joe Gibbs (Summit Racing Equipment).

I understand. I looked for months...talked to numerous oil tech guys at oil companies on which oil I would endorse in my shop...and I believe in Amsoil.

One thing to look at...and knowing the engine is a roller motor...but this test for oil is very important and you might want to verify the oil you choose is rated to your liking.

Check out the NOACK Volatility (ASTM D-5800)

Look at post #10...and then investigate where your oil of choice rates...if a person even areas about this dynamic of oil that is often times not mentioned.

https://www.corvetteforum.com/forums...with-zddp.html

As for peoples 'belief' if a roller motor needs have a 'break-in' or not. I do know there are other parts in the engine that are.... or I feel... would benefit from using the same procedure. I know it is called 'breaking in the cam'...but as I wrote...other parts are also being seated during this same procedure.

DUB

Sep 14, 2016 | 05:12 PM

#24

Moser28

Racer

Joined: Jul 2008

Posts: 250

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I used Joe Gibbs BR30 for break in and I have had good results.

Sep 15, 2016 | 01:56 PM

#25

jb78L-82

Le Mans Master

Joined: Oct 2007

Posts: 7,447

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From: Tennessee/Rhode Island

Quote:

Originally Posted by bashcraft

There is no break in period for a roller cam. Just change the oil after the first few miles and it'll be fine.

Did you read post #8 and 11 as to the reasons roller cam motors need to be broken in properly?

Sep 15, 2016 | 02:19 PM

#26

bashcraft

Le Mans Master

Joined: Jan 2006

Posts: 6,506

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From: Butler Pa

Quote:

Originally Posted by jb78L-82

Did you read post #8 and 11 as to the reasons roller cam motors need to be broken in properly?

I did, and I wrote that if you change the oil after the first few miles, particulate matter from the rings won't be an issue.

If the cylinders are honed with the proper finish recommended by the ring manufacturer, they'll be seated by the time the engine comes up to temperature the first time. This is from my engine builder who's been doing this for 30 years.

Apr 11, 2019 | 02:17 PM

#27

~~ArmchairArchitect~~

Banned Scam/Spammer

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From: Philadelphia PA (Birthplace of the USA, UNESCO World Heritage City)

I use Mobil 0w40, better protection both on cold start (where most engine wear occurs) and at high temps.

See more detailed reasons why in this post:

https://www.corvetteforum.com/forums...post1595872701

Apr 11, 2019 | 02:56 PM

#28

cv67

Team Owner

Joined: Oct 2004

Posts: 81,241

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From: altered state

St. Jude Donor '05

w/bashcraft, rings take a set pretty quick all this long term break in stuff is baloney. If you want to do your own "seat the rings" procedure do it quickly.....at 50 mi you should be able to give it hell.
Rollers can go flat too, imo has more to do with parts quality more than anything else.