Claude,


The engine will be completely usable after just 2-3 (20-30) tanks of fuel.
However, for the very tough, high quality materials, MVVS engines are made from, it takes a little longer to achieve perfect fit.

If you own a car made by Peugeot (and other prominent companies. I have a 406 2.0L), you would notice it takes a lot more than just the break-in period, for the engine to reach 'maturity'.
My car took about 30,000 km, to cut 0.4 seconds from the 0-100 time, compared to the number at 1,000 km.

It still shows the same numbers with 100,000 km.


Your MVVS engine will take time to reach its full performance, but will hold it for about 100 hours of running (if not abused).

Some less expensive and common engines are made of 'softer' materials, to reach maturity ASAP... No one cares if they only last 15-20 hour afterward, as replacement is preferred to repair, with very high part costs.

MVVS parts are not expensive, since repair is the cost efficient way to keep your engine running at its best; not throwing it in the garbage and buying a new one...

Enjoy your MVVS!