oil change for a 92 bmw 325i?

the brand is really irrelevant as far as the oil goes some good brands are Castrol Mobil Valvoline Pennzoil

i would think it probably takes a 10w30 you can check the owners manual to be sure

if you change your oil frequently and regularly you can get by with conventional oil but remember unlike synthetics it will start breaking down after about 3000 miles so keep a regular schedule

as far as the filter goes I would suggest the Wix brand for many reasons but too much to write out here

also make sure you replace the air filter every other oil change as much as gas costs these days you need all the fuel economy you can get

BTW i love those BMW's

good luck

Depends on why the car needed: 2.New Thermostat and housing4/4/08 3.New Radiator (Behr), Drive Belts, Fan Blade 4/4/08 4.New Water pump with metal impeller 3/22/08 These are weak point in these cars and if car require these service because cooling system failuare, that usually means you have blown head gasket. However, if seller is BMW specialist like myself, and replace the above parts just to prevent future problems, the car should be a good buy. I would least get an engine compression test to verify that the car does not have blown head gasket.