Way too much is oil a very bad thing. When it cavitates and starves the entire engine she'll be unfixable...or at least not worth fixing.Way to much oil is bad but not unfixable. 4 qt's should be fine
That's exactly what I did, but ended up putting just over 4 quarts before it hit the full mark.Shop manual differs by calling for 3.7 with new filter. Personally I put in 3 full bottles and ½ of another bottle and then add a little bit at a time until the oil is at the proper site glass level. If you're gonna do it, take the extra 2 minutes and do it right.