gnu, I have replaced a few things on older vehicles (pre-computer). The housing for the water temperature sensor (and the sensor itself - any time you open that you might as well replace the sensor.) On the old Ford Courier that Mazda built. 4-cylinder. And I changed the oil in my VW beetle and in my Ford F-100. The most I can claim to have done recently is change the cabin air filter in the Nissan SUV. What a bugger to replace - you have to be a contortionist to fit in there.