Ford 2.7L Ecoboost - API SP vs Ford WSS-M2C961-A1 + Pennzoil

Messages
7
Location
Ontario, Canada
Hi Everyone,

I have lurked for years but time to make some posts...I could use some advice!

I've got a 2021 F-150 on the way with the 2.7L Ecoboost. I'm ashamed to say I'm not sure what oil to use and could use some advice.

I have been using PPU for my other cars for reasons well documented on BITOG but am worried it won't be compatible with (my first) new vehicle warranty. It's been really nice to just have one type of oil on my shelf for our vehicles, it supposedly performs excellent and can be had for a good price. Once I get the truck, I'd like to change to a full synthetic oil as soon as makes sense... probably at 5000km (3000 miles); but open to suggestions!. I will be maintaining myself.

The manual says:
"Use oil that meets the defined specification and viscosity grade...If Motorcraft oil is not available, use motor oils of the recommended viscosity grade that meet API SP requirements and display the API Certification Mark for gasoline engines...."

There is also a table provided with the Motorcraft synthetic blend oil listed and a heading that that says Specification: WSS-M2C961-A1

I could not find anything on the Pennzoil site listing compliance to Ford WSS-M2C961-A1, but lots of options for API SP certified oil across many different brands. Pennzoil lists compliance to WSS-M2C929-A and WSS-M2C946-A, which seems older.

I know i've read before on here that the API designation is the spec that's required, but the only other time the word "specification" is mentioned on the sheet is in reference to the Ford number, so it's got me worried! Maybe I am overthinking it...

All this leads me to some questions:

1) To keep my warranty, must I use oil that is compliant to WSS-M2C961-A1, just API SP, or both? I interpret as API SP is the bare minimum requirement, but they'd rather you buy their oil.
2) Any idea what drove the new ford spec, or if there is anything interesting in there that might be challenging for companies to meet?
3) Does Anybody know why no Pennzoil products have the new ford spec listed?
4) Most importantly, what's my best bet for oil? Should I play it safe and go with something like Mobil 1 EP that does claim compliance to both API and Ford Specs?

My end goal for the truck is long term ownership and will err on the side of using better oil and changing more often than what the manual/OLM suggests. no interest in extended intervals.

FYI the oil change intervals say to follow the OLM and to expect the message to come on:
Normal Use: 7,500–10,000 mi (12,000–16,000 km)
Severe Use: 5,000–7,500 mi (8,000–12,000 km)
Extreme use: 3,000–5,000 mi (5,000–8,000 km)

I can't see feeling comfortable going that long as normal intervals. severe sounds more like it considering the fuel dilution I have seen on UOAs here and I will be towing a couple thousand kms a year each oil change, but a light load compared to what it is capable of.

Best Regards,
Steve
 
Messages
2,218
Location
Muncie, Indiana
WSS-M2C961-A1 is pretty much ford's rebrand of API SP with ILSAC GF-6A, the manual says that the minimum is API SP with API certification mark which means ILSAC GF-6A API SP 5W-30 is the minimum you should use, I'd use any synthetic 5w30 oil that meets Dexos1G2 along with API SP in the ecoboost.
 
Messages
253
Location
Central US
1) To keep my warranty, must I use oil that is compliant to WSS-M2C961-A1, just API SP, or both? I interpret as API SP is the bare minimum requirement, but they'd rather you buy their oil.

API SP/GF-6 is the new bare minimum for modern oil. It's modeled after GM's Dexos1 Gen 2 to address LSPI issues. I would recommend using a M2C961-A1 approved oil to CYA.

2) Any idea what drove the new ford spec, or if there is anything interesting in there that might be challenging for companies to meet?

Ford 61 is their acknowledgement/equivalent of the new API SP/GF-6 specs.

3) Does Anybody know why no Pennzoil products have the new ford spec listed?

Good question. All indications point that SOPUS products should meet M2C961-A1 since they meet API SP and still meet D1G2.

4) Most importantly, what's my best bet for oil? Should I play it safe and go with something like Mobil 1 EP that does claim compliance to both API and Ford Specs?

I can verify that Motorcraft Synthetic Blend, Valvoline AFS, and M1 EP have the M2C961-A1 spec and would be your easiest "off the shelf" finds.

Valvoline Extended Performance is a new interest of mine based on VOA's that also looks like it carries M2C961-A1.

M1EP has a great string of mail in rebates currently (buy at O'Reilly, price match to wal-mart, $10 OReilly rebate, $15 M1 rebate)

I imagine that there will be some label updates later this year/early next year with Dexos1 Gen 3 for SOPUS and Castrol that will also cover M2C961-A1.
 
Messages
949
Location
Alaska and Wisconsin
I'd say give the new SP version of Castrol Magnatec 5W-30 a try. It meets the WSS-M2C961-A1 specification, and will run well in cold weather. Others on this site have posted excellent EcoBoost UOA results with Magnatec oil.

Here's the latest webpage: Latest Castrol Magnatec 5w-30 Webpage

Latest slick sheet:
 

Attachments

  • Castrol GTX Magnatec 5W-30 Outstanding.pdf
    42.1 KB · Views: 29
Top