Toyota 6-cyl break-in

[GoHokies_92]

I am rebuilding a Toyota inline-6 engine (1FZ-FE). What oil do you folks recommend for breaking in this engine?

I am leaning towards the Rotella-T 30 (CF2,CF-4). Is this a good oil to use?

This engine has dual-overhead cams, the head was reworked, but the cams and lifters are already broken in, so I'm mostly concerned with the break-in of the piston rings.

TIA

 

[njcruiser]

good luck, nice engine. how many miles at the rebuild, those should go 300K easy. Going back in your land cruiser?
Anyway, I would use a 10w30 dino oil and change out at 500 and 1000 miles. Then go synthetic. I always used 10w30 M1 in my 93 land cruiser with that engine with no issues for 175K. By memory it calls for 5w30 or 10w30 right?

 

[Thatwouldbegreat]

http://www.lnengineering.com/oil.html


"What non-detergent oil can I use when breaking in a new engine?

Just because non-detergent oil is cheap, it doesn't mean you should use a cheap non-detergent oil. I would recommend using the highest quality oil regardless, and Exxon Aviation Piston Engine Oil is one such oil. Meets SAE J1966 spec for aircraft piston engines for non-detergent break-in lubricant. This is probably the best quality non-detergent oil available, for those who prefer to use such an oil on a new engine. Available from http://www.eliteetc.com/exoil.html.

Other than non-detergent oils for break in, I have also been informed that just this year Brad-Penn / Penn-Grade began to offer a SAE 30 break in oil with .14% Zn and P already in the motor oil. Information about this oil can be found at the American Refining Group's website here. Joe Gibbs Racing also offers their BR break-in oil here.

Many cam manufacturers have recommended Rotella T in the past for cam break in. Remember, this was the CI-4 Rotella T some manufacturers were recommending, not the new CJ-4 Rotella. Be advised that we do not recommend the continued use of the new CJ-4 Rotella T for cam break-in. Additionally in support of this position, magazines such as Fleet Equipment, in one such article "Focusing on Oil," stated that CJ-4 oils should only be used in 2007 and later engines and that earlier engines should remain on CI-4 oils.

How should I break in my engine?

If you have questions on how you should break in an engine and proper break in procedure, we recommend reading the following articles about the subject:

http://www.mototuneusa.com/break_in_secrets.htm
http://www.aircooled.net/gnrlsite/resource/articles/engnbrkn.htm "

 

[JohnBrowning]

Do not put a Non_Detergent oil in that engine!! The only ND oils out their are junk! Their is nothing wrong with a detergent oil at all!If you want to seat the rings right goto MotuneUsa.com or google MotuneUSA. Follow his break in procedure and you will be fine!I would use an oil like Havoline 5W30 for the first couple of changes since they will not spend much time in the sump and Havoline has lots of moly. Moly is good for ring break-in. What type of assemble lube have you used on all the parts? Once you are past the initial short oil change intervals butnot yet to a full OCI I would go to a nice HDDEO like Rotella 15W40, Delo 15W40, Delvac 15W40 etc.... Once you have a solid 5000 miles on the machine take her over to synthetic. The only reason I am recomending that you wait to 5000 miles until you go over to synthetic is because of the rebuild. An aftermarket rebuild is not finished as finely as a new OEM engine is and it will be throwing off accelerated wear metals longer then a new engine. So it does not make sense to use an expensive synthetic when you are still changeing freq.!