First start oil

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Mar 4, 2017 | 11:19 AM

3twinridges

Thread Starter

Cargo Master

Joined: Nov 2014

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First start oil

I am about to fire the rebuilt 255 flathead. I have the Lucas zinc additive, any recommendations on the best non detergent oil for breaking it in?

JB

Mar 4, 2017 | 03:11 PM

CharlieLed

Lead Driver

Joined: Aug 2006

Posts: 8,094

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From: Brentwood, TN

I use Royal Purple...here is their pitch:

Engine builders have grown increasingly concerned that many modern motor oils do not provide adequate wear protection for new engines, particularly those using flat-tappet cams. Royal Purple has addressed this issue by developing a new engine break-in oil that promotes a gentle start-up and gives you superior protection from rough-running engine problems.
Royal Purple combines highly refined mineral oil, preferred for engine break-in, with advanced additives containing high levels of zinc and phosphorus to optimize protection in flat-tappet and roller engines.
Royal Purple Break-in Oil is formulated to allow optimal ring seal and protect rotating assembly components such as the camshaft and valve train from initial start-up wear. Its high film strength provides engine protection superior to full synthetic oils that are not engineered specifically for new engines. Perfect for your new factory-ordered vehicle and engine rebuilds, Royal Purple Break-In Oil is fully formulated and does not require the use of any other chemical additives. After the engine is broken in, we recommend using the right Royal Purple high performance synthetic engine oil for your vehicle.

Mar 4, 2017 | 04:39 PM

ALBUQ F-1

Fleet Owner

Joined: Jul 2004

Posts: 27,299

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From: NM

Why do you want to use non-detergent oil?

Mar 4, 2017 | 05:44 PM

bhalemail

Elder User

Joined: Sep 2015

Posts: 688

Likes: 6

From: Central PA

I really like the Lucas Hot Rod and Classic with HIGH ZINC

Mar 4, 2017 | 05:52 PM

3twinridges

Thread Starter

Cargo Master

Joined: Nov 2014

Posts: 2,442

Likes: 256

Thanks guys, will look into those and see which one is on amazon prime.

JB

Mar 5, 2017 | 05:48 AM

roadrunner01

More Turbo

Joined: Aug 2009

Posts: 551

Likes: 19

John Deere offers a break-in 30 wt motor oil. I have used it in the past breaking in freshly rebuilt engines. The Lucas stuff is mainly a marketing product, and it along with other oil additives should be avoided as it upsets the balance of additives.

Also why do you want to use a non-detergent oil as they went the way of the dodo bird and should only be used in air compressors.