I just finished the complete restoration of my 42 MB engine. I don't
know how to "break in" the engine as I imagine modern oils are different
and the procedure today may be different.
As I understand from old manuals, the crankscase was filled at the
factory with oil of the proper viscosity for the "break-in" period.
After 500 miles that oil was drained and replaced with engine oil of the
viscosity recommended in the manuals' Lubrication section.
Also, during the "break in" period it was suggested not to drive faster
than 45 mph for the first 250 miles and then slightly higher until a
minimum of 1000 miles had been traveled.
My questions are:
1.-Do I need to use different oil during the first 500 miles? If so,
what kind?
2.-What should be the proper viscosity to use today? My mechanic
suggests using SAE W40 but I think is to heavy for a new engine. I do
intend to use the jeep on heavy roads.
3.-Can I use detergent oils?
4.-Is it useful or recommended to add to my first oil one can of these
new products such as "motorcote" that suposedly reduce the friction in
any engine for like 80K miles? (as seen on TV...)
5.-What is a safe "break-in" period? 1000 miles or more? Is the
procedure described above correct for my engine? If not what shoud it
be?
I'm sorry for presenting so many questions but I don't want to shorten
my new engine's life by not doing a correct breaking in.
Thanks is advance for all your help.
Mauricio
42 MB in Colombia...
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