Your oil cap says 5-30?? Mine just says engine oil... I don't see any reason why they would've put in 10w-30 though... it just doesn't make sense... 
1999 Mystique LS V6
Alpine CDA-9807, Rear deck sub, Opt. TB, K&N RU-3530/MAF adaptor, custom heatshield, FSVT 17's, SCT 4-program chip, Eibach's/ST200's, Hella Fogs...
| 
