To make a long story short, I need to change the oil in my car BAD. My financial matters at the moment are restricting me to how much I can spend on the oil change. I switched to synthetic blend since I have a lot of miles on my car... I was wondering if it would be ok to use just regular Mobil 1 oil or would there be any side effects?

 

No side effects. Did you have any issues before you switched to synth? How miles do you go between changes?

 

switchign back and forth is not going to hurt anything. Not changing your oil at all is doing more damage than anything right now.

 

More miles than I have cared to go w/o oil change But Ive been VERY VERY easy on her in the meantime.

 

Mobile 1 Synthetic and do the change yourself...$30.

 

 

That doesn't answer my question. Personally, if you have less than 10k on synth, you could just change your filter and be okay.

 

Ive been running the synthetic blend for about 40k miles now, I guess its good for 6k or so?

 

Just, stay home this Friday night and dont drink! Take that money go buy the oil and filter and change it

 

Synth is easily good for 10k mi or one year intervals, but you need to change the filter every 6 mo. The question is, how many miles since the last oil/filter change?

According to Honda and the oil analyses I've seen, regular dyno oil is fine for the full 7,500 mi interval or 6 months, provided you're not FI.