I was wondering if my idle was high on my 04 cavalier auto at about 500-600 rpm. And if it was high what i could do to lower it. Also im currently running crude oil in my car ever since day one (31,000 miles later) i would like to switch to mobile 1 but i heard it was best to stick to fossile oil if that is what you were using. Should i switch or stay. Thanks
i switched over to synthetic at about 40k miles. not one problem since. car actually runs smoother.
Peace Out!!!