If all this were true about not letting your car sit, then why don't the valve covers leak, the headgasket, the front main seal, all the seals in your tranny, in your differential, etc all leak? Because its BS. Only driving your car on weekends is fine. It's not like it's sitting for years on end. It's only 5 days. Come on guys.
For Sale: M60B30 intake manifold, M50 intake manifold, 2.81 differential, new OEM upper control arm bushings, 8 M62 fuel injectors.