Major Tune-up

If the oil is leaking into the spark plug tubes it's going to be a little over $ 1000, but it really depends what do you mean by "major tune up". The valve cover gasket replacement is 7 hours or 10 if it has traction control. This job by itself is $560-800, add the sealer, spark plugs, plug connectors, filters. Zee

Walmart would do er, if you mean oil,oil filter,spark plugs,coolant flush kit/coolant,and a seafoam engine cleaner works great, with a bottle of that,M1 oil,sum lucas products, and MMO marvel mystery oil) can work out well for these, plus filters available there as well,batteries,new terminals or those brushed cleaners, makes it all in one stop if ur handy and DYI GUY