Page 223 of 356 pages for Buick ROADMASTER 1996 Owner Manual.
You can be injured and your vehicle could be damaged ll‘ you try,r to do service work on a vehicle without knowing enough about it.
C Be sure you have sufﬁcient knowledge, experience, and the proper replacement
parts and tools belore you attempt any vehicle maintenance task.
lie sure to use the proper nuts. bolts and
other fasteners. "English" and "metric” fasteners can be easily eonl‘used. If you use
the wrong Fasteners+ parts can later break or full otT. 1lr'ou could be hurt.
Use regular unleaded gasoline rated at 3'? octane or higher. At a minimu m. it should. meet speciﬁcations ASTM D43 l4 in the United States and CGSE 3.5-M93 in Canada. Improved gasoline steeiﬁentione ha it: been developed by the American Automobile Manufacturers Association tAAMM for better Ireliicle performance and engine protection. (in solinen meeting the MMA ﬁlteriliuulitm eould provide improved driveahitity and emission control ﬁyxmm protection compared to
Bo l-iIJTIL' the posted octane is at least 8?. If the octane in less than $7". you ma}.r get u hear},- knocking noise when you drive. If it's had enough, it can damage your engine.
If you' re using fuel ﬁlled at 37' octane or higher and you still hear heavy knocking. your engine needs service. But don‘t worry if you hear a little pinging noise when you're aeoeieruting or driving up a hill. That‘s normal. and you dorﬂ have to buy a higher octane fuel to gel rid of pinging. it’s the heavy. constant knock that means: you have a problem.