It'* not the blend (fossil vs. synthetic) it'* the weight. If the owners manual says 5w-30 then yes, but if you put in a 10w-30 it won't hurt it.

Synthetic is alot better and you should use 10-30 it is what should be used for your car

iight thanks every1, for all your help, im so grateful u could help me, i cant stand another bonnie biting the dust, im deff walking to walmart to buy new oil for sure, this car has been in my life since i was 14 months old, i dont consider it a car, its a part of the family

Let us know how it works out!

Good luck Rico let us know what happens

o yea deff for sure

i bet the rattling is the lifters and its due to the thin oil... not even z06 corvettes use that thin of oil they REQUIRE Mobil1 Syn 5w-30, the Chrysler Crossfire is one of FEW cars that uses 0w-40 and thats like tan water lol, I use 10w-30 at 160,000 miles with no rattles

up the weight NOW and i will bet the rattle will be gone... the thin oil prolly isnt building enough pressure and coating/lubing the lifters enough to keep them from making noise that thats what your hearing, but delaying will prolly cause problems

IF after the change, nothing changes let us know but i bet if you drop some Mobil1 10w-30 or even Mobil1 10w-40 *slightly thicker, for high mileage motors* it will quieten it up

when you change it again grab 10w30 also try a bottle of lucas

ok, what is a bottle of lucas?

Lucas is a oil additive. Personally I don't use it. I just use good oil and keep it clean.