which 20w

[wjli]

based on your experience with UOA reviews, base stocks, and add packs, which 5/20 would you use?

service is moderate (lots of stoplight to stoplight)and georgia temps.

engines are 2 - dohc I4's and 1-sohc v6

my choices are:
GTX (12.50 jug)
MC5000 (11.00 jug)
Motorcraft semi syn (12.50 jug)
QS (10.50 jug)

ocis around 4000 with filter change @ 8000 (lest you think this is a bad idea)filter brands vary. (2 are cartridge and 1 is spin on)

personal opinions are welcome and expected.

 

[bradepb]

Motorcraft,or Motorcraft ,or possibly Motorcraft

 

[bepperb]

Well, what's it in?

I wouldn't mind either motorcraft. The GTX is a relatively thick oil, which might be good for you in FA, but I guess I'd go MC syn if those were my options.

 

[94supraonchrome]

I ran one 5K OCI of 5W20 Motorcraft and it did fine. It's priced well for a semi syn. My second choice would be the MC5000, and third the GTX. I would change the filters at 4K as well, but you will proably be OK at 8K. Maybe do a 5K OCI and filter?

 

[addyguy]

At 4k OCI's it doesn't matter at all what you use. QS is the cheapest, and is an excellent oil, so I'd use that.

If I was going to the effort of doing an oil change, I'd change the filter while I was at it. While I don't doubt a filter can last longer than one interval; if you're 'already under there', might as well change the $3-$5 filter while you're at it. Just my opinion, many on here will do exactly what you're planning on doing.

 

[CROWNVIC4LIFE]

Originally Posted By: 94supraonchrome
I ran one 5K OCI of 5W20 Motorcraft and it did fine. It's priced well for a semi syn.

+1

 

[Gary Allan]

Quote:
ocis around 4000 with filter change @ 8000 (lest you think this is a bad idea)filter brands vary. (2 are cartridge and 1 is spin on)



What's the annual mileage for the respective vehicles? If they're around 12k/year, 4k and every other interval for a filter change is fine. If it's 8k/year, then you're probably not a candidate for the every other filter routine.

You can take that even further in detail. If the 4k was mostly stop and go, with longer bouts of post fuel enrichment operation (like extended urban driving) ..then you're really into a higher mileage scenario where "every other" on the filter may work. The true ratio of warm up miles to post enrichment miles is low. Filter loading would be lower than someone who drove out the same amount of fuel with a 5mile commute. It comes down to loading gallons of fuel to non-loading gallons of fuel. You just can't always see it clearly on the odometer.

 

[pbm]

Pennzoil Conventional is currently 11.50 for 5 qts at Walmart and would be my first choice, followed by MC, then GTX, then either Quaker State or Mobil 5000.

 

[wjli]

motorcraft seems to be the highest rated thus far. Is it for its "semi syn" properties (which i guess includes a better base stock that the others)

how is motorcraft on deposit control?

 

[Silber Igel]

Originally Posted By: wjli
motorcraft seems to be the highest rated thus far. Is it for its "semi syn" properties (which i guess includes a better base stock that the others)

how is motorcraft on deposit control?


Spring for the Motorcraft/Conoco/Phillips 66/Union 76/Kendall blends. They are all siblings made by ConcoPhillips and very little difference... if any ... between them. Go for convenience and price...

I've used 'full synthetic' oils for 30 years... excellent products but have recently changed to MC 'blenders'...

I don't really care what the oil stock is ... could be grape juice, for all I know... As long as it meets the SAE/API/ACEA or manufacturer specific specifications, e.g., Ford, VW, M-B, BMW... its an OK product.

For me the 'blend' part means that the oil is going to be highly flexible in its viscosity and give you the 'thinnest' oil for the temperature up to 212F. This means better pump-ability when cold, cool, or at intermediate temps below a fully hot engine. (Which in my case is most of the operating cycle.) Most engines don't run hot enough to meet the demands of a full synthetic due to improvements in cooling systems and larger sumps. But if you do get the thing stinkin' hot there's plenty of reserve in a blend to protect the engine.

As for deposit control... as a quick reference point ... all the oils meeting the API "SM" or FORD qualifications should be fine. Check the side of the bottles... a 5W-20 for example should meet/exceed Ford specification WSS-M2C930-A... These qualifications are one of Ford's "better ideas". There's different FORD specs for different grades...

Hope this helps.