Just curious who is using Mobil 0-W20 in the forum? I saw they have it at Walmart for the 5QT for $22 right now and am looking to switch my 08 Escape Hybrid to Full Synthetic.

Mark

 

I use it and have even taken it to the dealership along with a Motorcraft oil filter and had them change the oil and filter for me.

 

My Ford dealer also said they would use any oil I brought in, but they don't sell full synthetic.

 

Motorcraft has a full synthetic motor oil. You got a service advisor that doesn't know his product line. Go to motorcraft.com and read all about it.

 

I used Mobil 0-W30 my last change, about 7K miles ago. I really wanted 0-W20, but could only fine the 0-W30 at that time. I will look for 0-W20 for the next change, but if I can't locate, I will not hesitate to use 0-W30.

This is my wife's car, and she is now retired and drives it much less. Even with full synthetic, I'll probably not go 10K miles in the future, but will change at 7K unless there is a real road trip.

 

I see that Sears carries 5W-20 Mobil 1 for $6.29 a quart.
I see that a source on Amazon.com will ship 5 quart containers of 0W-20.
I get my 5W-20 delivered to my door by AMSOil.

As long as you are using the API - SM you should be in warranty, but why would you want to use 30 weight at any time of the year?

What the API tries to do:

The service rating of motor oils is classified by the American Petroleum Institute (API). The program certifies that an oil meets certain OEM quality and performance standards. The service rating is shown in the API "Service Symbol Donut" on the product label. There may also be an "API Certified for Gasoline Engines" seal on the label. Here are some example labels:
The latest service category rating for gasoline engines is "SM", introduced in November 2004 for 2005 and newer engines. SM-rated oils along with the previous "SL" (2001) and "SJ" (1997) ratings, are backwards compatible and can be safely used in most older engines. But the opposite is not true. Older obsolete service classifications (SH, SG, SF, etc.) may not meet OEM lubrication requirements for newer engines. Likewise, API SL oils should not be used in 2005 and later vehicles, and SJ oils should not be used in 2001 and newer engines.

Attached is the legend from the API website.

 

Right... it is the SECOND number that matters most.

0W20 means the oil acts like a zero weight when cold, 20 weight when hot.

0W30 means the oil acts like a 30 weight when the engine is hot, which is most of the time.

HTH,
-John

P.S. I use Mobil 1 0w20 in my FEH and have for 90,000 miles.

 

I use 0-20 on my '07 whenever I can find it, otherwise I use the recommended weight.

 

What does the FEH recommend using? I know the HCH recommends 0W-20, and I've used Mobil 1 0W-20 without any issues.

 

I believe it is 5-20.