1995 Buick Regal Owner's Manual - Page 222

Pull out the filter. Be sure to install theair filter and install thecover tightly when you are finished. Refer to theMaintenance Schedule todetermine when to replace the air filter. See "Scheduled Maintenance Services" inthe Index. NOTICE: If the air cleaner off, a backfire can cause a is damaging engine fire. And, dirt can easily get into your engine, which will damage Always it. have the air cleaner in place you're driving. when 6-14