1993 Buick Park Avenue Owner's Manual - Page 258

Refer to the Maintenance Schedule to determinewhen to replacethe air filter. See "Scheduled Maintenance Services'' inthe Index. Automatic Transaxle Fluid When to Check and Change: A good time tocheck your automatic transaxle fluid level is when the engine oil is changed. Refer to the Maintenance Schedule to determine when to change your fluid. See "Scheduled Maintenance Services" in the Index. A CAUTION: Operating the engine with the air cleaner off can cause you or others to be burned. The cleaner air not only cleans the air, it stopsflame if the engine backfires. If it isn't there, and the engine backfires, you couldbe burned. Don't drive with it off, and be careful working on the engine with the air cleaner off. How to Check: Because this operation can be a little difficult, you may choose to have this done at a Buick dealership Service Department. If you do it yourself, be sure to follow the all instructions here, or you could get a false reading on the dipstick. : I NOTICE: If the air clean damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always have the air cleaner in place when you're driving. i ' transaxle. Too much can mean that some of the fluid could come out and fall on hot engine parts, starting a fire. Besure to get an a if you check your transaxle fluid.