Just bought a 1986 240 with 34,000 miles... I've been reading a lot of old posts, but they all refer to manual gearboxes, not automatic. There's no service records, so I'm going to to be renewing all fluids in the car. I'm wondering if I should put synthetic oil in the automatic gearbox?
I was considering synthetic engine oil. But a search turned up popular opinion is, there's not much benefit compared to the risk of developing leaks.
What about brake fluid... Is there anything I should avoid/be aware of? (I'll be going to mechanic who just uses the same brand on every car he services. Is there something I should be buying for the transmission/brakes that he wouldn't have?)