What type of oil to use

[nocrawl]

So my all engine work in my 80 will be complete in 2 days and I will finally get to drive it after 6 months downtime. It will have a turbocharged rebuilt MAN-A-FRE engine. I'm getting mixed advice......Some are telling me to go synthetic for break in and then switch to regular and others swear by sythetic all the time just like some old timers are telling me to NEVER run synthetic oil so I've come to ask the experts. What do you all think?

I'm in Miami so no freezing temps ever.

Thanks,

 

[7schulz]

I have used many oils. mobil clean 5000 for regular, Mobil 1 0w-40, Mobil 1 5w-40 turbo diesel oil. I think it has more to do with use a quality oil and change it regularly.
There is FAQ on oil here
https://forum.ih8mud.com/80-series-tech/79305-oil-recommendations-discussion-thread-faq.html

If you haven't been here yet take a look.
Welcome

 

[bmac1996acc]

I'm using Mobile1 5w40 diesel. Seems ok and not leaking or anything. There's a pretty detailed oil thread on here if you search for it.

 

[AJP]

Frontier Power Products - Deere Break-In Oil

FWIW was told recently that my new JD2520 (diesel) should not be run on synthetic till is properly broken in .. and one of the indications that it is broken in (eg rings seated etc) is no oil consumption. Now this may be giving synthetic oils more credit than they deserve for reducing/eliminating wear but there you have it. If you have replaced rings and or bearings ... I wouldn't do synthetic right away $.02

 

[nocrawl]

Frontier Power Products - Deere Break-In Oil

FWIW was told recently that my new JD2520 (diesel) should not be run on synthetic till is properly broken in .. and one of the indications that it is broken in (eg rings seated etc) is no oil consumption. Now this may be giving synthetic oils more credit than they deserve for reducing/eliminating wear but there you have it. If you have replaced rings and or bearings ... I wouldn't do synthetic right away $.02

Thank you very much for answering my question and not sending me off to research the history of how oil was invented.

I really apprciate your help won't use synthetic until I hit 1500 miles

 

[jlg32281]

Also, considering you're going turbo, I 5w would be the heaviest I would run.

 

[CycloSteve]

My 97 M3 which I picked up new in Germany had straight 30W dino oil in it for the first 1000km break-in period. They also replaced all of the fluids during that service, and I mean all...that car never burned a drop of oil for the four years that I had it. The reasoning is that the motor was built with very tight tolerances and that straight oil was better for the short interval. After that it ran full syn.



Steve

 

[LX_TREME]

<-- Original 80s owner 13 yrs until now still using same Mobil 1 fully synthetic - 10w30 the one with green cap (Before and after fully rebuild 1FZ- FE).

 

[nocrawl]

Thanks

 

['74 UA FJ]

<-- Original 80s owner 13 yrs until now still using same Mobil 1 fully synthetic - 10w30 the one with green cap (Before and after fully rebuild 1FZ- FE).

I guess your oil didn't work wonders if you had to rebuild the engine....