I'm definitely sticking 5w30 oils that meets Ford's specs, for the warranty coverage. I've decided on either Mobil 1 Extended Performance or Valvoline Extended Protection.
If an oil has a viscosity of 8.5 cst at 100c that won’t be an Xw30, it will be an Xw20. The lower limit for a 30 is 9.3.
If you're not in the industry, how do you even find this out ?
Thank you. Then I guess you Google each brand and see where it falls inside the spread ?
That’s correct. For example this is the product page for Mobil 1 Extended Performance. You’re looking for 100c vis. (I prefer to use HTHS, but some manufacturers don’t give us that information)
I've heard the lifter issues they were having was mostly with trucks that idled for really long periods of time. From what I gather, trucks that were driven normally, generally don't have those issues. But I really don't know.
The "better" is noticeable only if you extend your OCI far beyond 10k miles. If not, don't bother. They will both perform equally acceptable.
The base oil (more GTL / Grp 4 in EP) (primarily group 3 in Vanilla Mobil 1) and the additives counts are different. The EP is a stronger oil.
Wow, thank you !
I'm definitely sticking with a 5w30 oil that meets Ford's specs.
With Valvoline extended protection doesn't really extend protection in the form that it's a longer drain interval oil like with Mobil 1 or Castrol EDGE Extended Performance. It's really just higher in moly so it's supposed to reduce wear but even that still remains to be seen as in standard used oil analysis wear metals are within margin of error compared to others and Ford's spec is rather worthless to be honest. It's so easy to meet you can achieve that spec with just a synthetic blend, not even necessary to make it full synthetic. The new GM dexos 1 Gen 3 is a more stringent oil in comparison to where I have yet to see a d1g3 oil not be full synthetic but I have seen the old d1g2 be achievable with a syn blend but even then d1g3 is still not stringent enough for my liking. I'd rather use something more stringent still like a Euro rated oil with bmw ll01/ll04, Porsche a40, mb229.5, vw504/507 for certifications as those specifications are more difficult to meet and prove that wear and deposits control is superior. As for 15w40 diesel oils are also stringent specifically the Volvo VDS 4.5 which is a stringent spec for wear and oxidation control. I believe the test runs for 360 hours and the oil can't oxidatively thicken much and there are many other parameters to test for which are also great and they can also be used in gasoline engines with no issue if they are not prone to low speed pre ignition (pretty much only turbo gdi engines are prone to low speed pre ignition, naturally aspirated engines with or without gdi aren't prone to low speed pre ignition. It's possible for a standard fuel injected big turbo engine to have low speed pre ignition but it's rare as you kind of need the combination to make it happen since the turbo exacerbates the issue) But even if the engine is lspi prone as long as it meets API SP which some diesel oils do it's acceptable to use as they're low saps and traded calcium for more magnesium. And you would think that the dealership would care or even know about the oil specs but there are actual ford master techs that have no clue about ford oil specifications. A lot literally do not know that they exist. The only thing they do look for is their service records and if they don't have any on hand they might charge you a little bit to pull the valve cover off to just see if it looks clean or not. It doesn't have to look spotless, they know that varnish is acceptable they just don't want to see any sludge. They will also pull the dipstick just to see if it was ran low but as long as there's oil on the stick and it's not too dirty they will warranty the engine no issue.
HTHS info is usually not provided by oil companies (unfortunately).
I just bought a $56k plus dollar truck. It has 600 miles on it. It has a 5-year, 50k mile powertrain warranty. And I'm going to add an extended warranty. I'M GOING TO USE A MOTOR OIL THAT MEETS FORD'S SPECS....END OF STORY!
