Volvo guy

Hi I've owned Volvos since I was about 45 years. I just upgraded to a 2002 v40 with 40000 miles. Runs pretty well cel on but I don't drive much and my mechanic said nnot to fix because of the small saving in gas. I've worked on them myself from everything from a 160 ,140s 5urbos duel carbonators so a little bit of everything nothing newer than 2002. Any advice I can offer I'll be glad to help with any old guy tricks I might be able to supply