Im hoping to have my fresh 1341 ready to run towards the end of this week. Whats the best way to run a rebuilt engine in? I've read some people saying use a good quality oil and change it after 500 miles or so, then others recommmending running in oil?
Pettsy
I used running in oil. Its pure mineral oil without any of the synthetic addtives. Went onto semi-syn oil after a couple of drops.
Hi, as above use mineral oil for the first 500-600 miles and keep engine speed to around 50% of max rpm and or light boost only, then change to semi synth for the next 1000-1500 miles and start to increase engine speeds up to about 75% with short run's "on boost", then after that it's up to you if you go to fully synth or stick with some new semi-synth, but engine speed can now be increased to 100% and full boost.
As for type of oil millers do a nice run in oil but it's quite pricey or the halfrauds realy cheap stuff (orange can iirc) works well, but whatever you use as long as it's full mineral and has the least amount of detergents possible it should do the job just fine.