Originally Posted by BlackStang00
The car determines the percentage of oil life by the heat up time of the oil and how it keeps temperature this determines viscosity and lubricity using several other factors its perfectly safe to go by oil life monitor but we still put 5k oil change stickers and I'd still feel weird waiting that long for an oil change
I follow the monitor. Your manual says to use to oil life monitor to determine when to change the oil. I posted the PDF page a while back from the manual. Our cars are specifically designed to go 10k. If you wish to throw away money because it gives you a peace of mind then good for you. (Not being snarky but really if you want to do it then do it, but it's not necessary). I trust the engineers. The monitor does its job. If you get on it on a cruise up and down some mountains the life goes down quicker than normal.
Just cause its weird doesn't mean it's bad. Change is good. Just think its weird that we can get 30mpgs with 305hp too.
---------- Post added at 01:33 PM ---------- Previous post was at 01:31 PM ----------
Link from review of our engine and text taken out of the manual.
Any adverse condition should be brought to the attention of your dealer or qualified service technician as soon as possible for the proper service advice. The owner maintenance service checks are generally not covered by warranties so you may be charged for labor, parts or fluids used.
Engine oil/coolant change intervals – 3.7L and 5.0L engines*
Engine coolant, initial change
Engine coolant, after initial change
As indicated by the message center: do not exceed one year or 10,000 miles (16,000 km) 6 years or 100,000 miles (160,000 km) (whichever comes first)
Every 3 years or 50,000 miles (80,000 km)
*Shelby GT500 owners: Refer to the Shelby GT500 supplement Check every month
Engine oil level
This was an exert on the write up in the 3.7 on v6muscle performance
2011 Ford Mustang Engine Deep Sump Oil Pan
The Duratec 3.7 V-6 uses a deep-sump oil pan that helps provide 10,000-mile oil-change intervals.
Each hardened tappet has a very slight crown in the surface, about 15 microns from side to side, to work better against the surface and metallurgy of the drilled-out hollow camshaft’s lobes.
Inside, the new engine uses piston-cooling oil jets mounted in the die-cast aluminum block that allows a higher compression ratio and a greater amount of spark advance for power production. With check valves in place, the cooling jets work only when the engine is hot and highly stressed. And, speaking of oil, you won’t have to reach for the left-front-mounted oil filter or drain the sump of the die-cast deep-sump aluminum oil pan of its 5W-20 oil for 10,000 miles, a 33-percent improvement over the usual 7,500-mile interval. This is an advantage brought about by continuous analysis of driving cycles (Ford says almost all of its engines will be 10,000-milers by 2012).