it's been about 3 weeks and about 2500 miles overdue of an oil change. i know you have to change your oil every 3k miles, but i just didn't have the time and kept delaying it. Next thing i knew, it was time for the second (next) oil change. I've changed the oil, but after a week - I noticed the engine is louder when idleing and it seems to *work* harder when accelerating on the highway. Is it from my missed oil change?

i remember standing next to the car and then sitting back in and wondering if i already started the car - that's how quiet it was before.

I'm scared that i hurt the transmission in some way. I'm also wondering if it's normal after reading the threads about 'unusual' noises.

-- it's an '00 at 78k btw.

 

i changed mine every 5-6000 when i was running regular oil, and now i change every 8-10k now that im on synthetic. (i didnt change to syn till 100k) you are fine, the manual says 7500 any way. just get it changed as soon as ya can