On my standard 2000 1.2 Opel Agila, I often have to get to about 5000RPM to join a fast road on a steep (1 in 10) hill, as it is gutless on hills. I have to do this almost every day, and I have occasionally gone to the redline (at 6300-6500RPM) just to get some speed up to join, as you start off from a standing start, as the junction is really badly designed
Note: I won't drive constantly at the redline, but I would get to it and then shift.
My oil is changed every 10k miles, and I service it regularly. Would doing it every 20k miles like it says increase the chance of damage?
The engine is chain driven. The milage is 85k.
Will this damage my car?
EDIT: I had a quick flick through the manual, and it says this:
Max. permissible engine speed, Z12XE continuous operation (rpm) 6250 approx
However, the redline is at 6500...