DuckDCoy
Well-Known Member
I’ll be buying the motor craft oil and filter recommended in the manual from rock auto. It’s less than half the cost of buying the same stuff from autozone.
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Make sure it meets the GF-6A standard....Mike, I heard that if you use Crisco in a Ranger, it will clog its arteries![]()
I'm calling bullshit. Show us those tests.Right! Just because Porche is being sponsored by M1 doesn't make it a good oil. I have seen numerous tests done on their oil with Di and it wasn't good!
A Mazda and a Hyundai?Look on the Mazdaspeed, Mk7 gti & Hyundai Genesis 3.8 g2 forums. Kind of a odd coincidence they all sucked don't ya think? I've owned all and they did not test well with M1 full synthetic

This is a Ranger forum ... you were talking shit about Mobil 1 oil. Back up your statements.Well yeah the speed3 had fomoco ALL over the 2.3 ??? So I'm assuming it's not too far away from the current 2.3t. What are you trying to say? That engine was stout af! Same as the 3.8 Genesis engine. Just goes go show what randos on forums know?. No comment on the mk7 gti? Just a tune and dp and mine laid down 330whp & 395wtq?
Floyd,Before retirement, I worked as a fleet mechanic for Mobil Oil,
We had access to a corporate lubrication department which provided us with expert advice on every lubricant .
For my personal vehicles I have run Motorcraft oil and have never had a part which ran in oil show any wear. Of course oil change intervals have increased as oil has improved and as fuel management has improved.
I will use Motorcraft parasynthetic 5W30 in my new Ranger .
It meets the highest standard in the industry.
I have been cautious about extending oil change intervals so I'll probably be conservative and change oil every 4000 miles. I may even hand my used oil down to be used in some older cars as I have in the past.
When asked about oil change intervals I usually respond with this question....
What sort of underwear do you wear??
After the incredulous look on their faces I continue...
Whether you wear cotton , synthetic blend fabric, or the finest silk,
they still get the same skid marks!
Mobil 1 Is as good as it gets, but it honestly won't provide any greater protection than Motorcraft, Especially if you think you can run it after it is contaminated.
Motorcraft parasynthetic 5W30 meets SN+ standards,but moreover it meets ILSAC GF-5 standards. AFAIK there is no higher standard for gasoline engines.
Another point... oil service life involves a lot more than the number of miles, and so oil change intervals should be done based on other factors as well, with the mileage arrived at after those considerations.
To what extent is your experience with Porsche? Porsche certified tech, bronze, silver, gold?If Mobil 1 cost Porsche one penny it wouldn’t be the factory fill. I‘ve never seen a Porsche fail because of the correct Mobil 1.
Floyd,
Is the parasynthetic you use classified as a synthetic blend or a straight synthetic?
Unless I'm mistaken, AMSoil is not API certified?Amsoil will be the life blood of my truck. Ordered 0w-30 signature and 75w-90 for the front and rear diff’s. Will be changing all of this at 2k miles initially and then engine oil once ever 6 months or 10k miles.