Tech Tip #25: Break-in Oil: Not Synthetic

Written by Dr. Diesel

Share

Recommended oil for initial break-in on Deutz and Perkins engines.

In Foley Tech Tip #1  we recommended a 50/50 blend of synthetic and petroleum-based oils, but a word of caution: don’t use synthetic oil during the critical initial break-in period. It’s to slippery! The internal engine parts will not have a chance to wear-in together. Many camshaft manufacturers and regrinders say not to use synthetics until the first oil change. Petroleum-based oil will enhance the break-in of the cam and lifters.

At the first oil change, change the filter too to get rid of the molybdenum disulfide cam break-in lubricant. This goop while necessary for break-in, can easily clog an oil filter. Then fill the crankcase with either a full synthetic or a 50/50 blend.

Of course, there is more to breaking in your engine than just your oil selection.  For additional information see How To Break In A Rebuilt Engine and Foley Tech Tip #184: How To Break-In A Remanufactured Deutz Or Perkins Engine.

Share

Written by Dr. Diesel
Knowledge is power. To help our customers, we share tech tips summarizing some of our opinions, knowledge and information of interest that we have gathered since 1916 when Foley Engines opened for business. If you have any questions or comments, go to “Ask Dr. Diesel™” where you can pose questions about engines, clutches, exhaust scrubbers, etc.
×