No I change my oil every 5,000 miles, oil change are needed for your engine to last

 

I would get adapter and fuel pressure gauge and check fuel pressure FIRST. You need around 50-60 psi for longevity of your injectors. I got a small gauge and brass adapter and left it in test port. If you suspect problem just pop hood and look. If fuel pressure is good, get a quart of Hot Shot Secret and run for a few hundred miles. It's only $50 and does clear up SOME injector issues. If it works u can leave it in there till next oil change. If it doesn't it was $50.

 

Did you ever get it cleared up?