Frankly speaking a new +4 has an up-to-date-engine that requires modern service intervals. To change oil at 1000km may be sensible but change of oil some 2- or 3000 km later seems wasting resources to me as service intervals at higher tuned modern engines are at 25.000km or 2 years on my "standard" cars.
Rather not to forget greasing the king pins than changing modern oil too often.
Just my personal opinion.
