|
I do about 8,000km annually and replace my oil twice a year & use Shell 5W40 synthetic. Some would say its overkill, but its also peace of mind. Its not a daily driver like yours, only weekend use.
You seem to have short runs and I assume your ambient temps are pretty low, but I would think that replacing the oil just before you lay it up (Dec) and again in April /May before running it during the summer months should be more than adequate for the car.
Are your petrol octane ratings different to ours - here 91 is regular gas but Porsche recommend 98 octane? Low octane fuels are definately a no no as it causes pre ignition knock & overheating which can be very dangerous to your engines health.
|