Engine Oil Question

Hey guys, i was just wondering if ive been putting synthetic in my car but want to go regular, is that bad? would things get messed up?

ive searched online and asked some ppl but im getting mixed answers. Some say theres no proven fact it was cause things to damage. Its a inline 4 cyclinder 2.4l pure stock, so i see no reason to go pure synthetic.

Thanks for any input.

How many miles?

Dont do it!

synthetic blend is a waste of money so dont do that

castrol high mileage

well it was switched to pure synthetic at 5,000km till now which is 80,000km pure stock 03 eclipse so i only threw in pure synthetic, well becuz i wanted to give it the good stuff, but i see no point cuz theres no performance mods on it and now that im a student again, im short on cash ahahaa