curbdog17 said:
the other day while mudding my oil pressure dropped so low the check gauges light came on, the oil pressure was down to 1 or 2 psi. i pulled it out and let it cool down. i was able to drive home with about 5 psi. i did an oil change this morning and ditched the fram filter. CRAP FILTER. before the oil change i started up the jeep and had about 15 psi at cold start. i changed the oil to mobile 1 15w 50 and used a mobile 1 filter. when i started the jeep back up i had 55 psi at cold start and about 30 psi afer warming it up and driving around town. i am a true beliver in mobile 1 now, and will never buy another product from FRAM.
No doubt Mobile one filters are good, I'm currently running one a M1 Extended Performance, M301, to go w/ the Extended performance 15,000 mi oil that I'm running. Don't overlook the Purolator Pure One filter, P3001, Ford 5.0 filter, threads onto my XJ and holds an extra 1/2 qt of oil.
My oil regiment for my XJ is as follows:
Fresh 6 qts of M1 Extended Performance and M301 or P3001 for 5,000 to 7,500 mi while monitoring the oil
Fresh Filter and 1 qt to 1.5 qt of oil at 5 - 7,500 mi
run another 5 - 7,500 mi
start all over
The oil at 10,000mi appears to be clean as regular oil and filter at 2,000 mi. In the long run it's not only cheaper it is reassuring to know that I'm doing good for my engine. Also I bought the XJ from my uncle who I know was putting in M1 since 25,000 mi so that was not an issue. The engine currently has 141,000 mi and has a slight tick on inital startup in the A.M., but what 4.0 doesen't, and doesen't burn a drop of oil. The main seal leaks a little but that promotes topping off, which keeps your oil fresher.