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Google valve train issues for the 5.3 and 6.2 engines. My sons GMC had those issues.

I agree with this except for the short OCI comment.

M1 LV HP ATF. I believe GM dealers carry it. I order it from O'Reilly's Auto in the 6 pack. Performs great in My 2017 Ford Fusion 6F35 trans.

I've been doing 10K OCIs for the last 45 years with great success.

I have questioned Mobil Tech a couple of times(last time maybe 5 years ago) and they assured me all M1 badged oils are considered Grp 4. With the results I have had all these years with M1 at 10K OCIs, I don't doubt it. Now Mobil synthetic is a Grp 3. With all this said, no oils are of one base...

How well was it serviced? I know two other people with the 6F35 in their fusions, one with 190K and the other with 245K with no issues to date.

This is the NA 2.5 Duratech engine and the 6 speed 6F35 trans. with 150K. The first parts to be changed on the car was last month when the drivers side front strut needed to be replaced. I went ahead and had the other side done as well. When it had 57K the timing chain cover started slightly...

Changed oil in the 2017 Ford Fusion 2.5 NA at my usual 10K OCI. Used no oil with this OCI. Out: M1 5-20 EP In: M1 5-20 EP Filter: MC FL 910S

Any oil consumption?

True, as I have listed in my post signature. If I needed the 820 then I'm sure I would go with something different.

What evidence? I've never said MC filters are the best.. Only I've never had a bad one in the nearly one million miles I've used them.

I would change because you think I should??

I changed oil today in my 2007 Ford Fusion with 305,000 miles. Did my usual 10K OCI with 4-6 oz oil loss in the 10K. Out: M1 HM 5-30 In: M1 HM 5-30 Filter: MC FL 2017B cartridge in and out,

I don't believe much of what I see on the web. So I'll keep using MC filters until I actually see a reason to change since my long experience(a million plus miles) with MC has worked well for me. With that said no filter is beyond an occasional failure.

I've been using MC FL 910S and Mc Fl 2017B cartridge filters for close to a million miles in Fords and have never seen this.

The 2007 Fusion just turned 305,000 miles. I do plan to change oil next week and this 10K OCI in this engine used about 6-8 OZ of oil.

This is from my 2007 Ford Fusion with 304,000 miles at a 9500 miles on my usual 10K OCI. oil consumption has been almost zero.

Changed oil today in my Subaru powered generator. No oil consumption. Out: M1 10-30 In: M1 10-30

Changed oil and filter in my 2012 Craftsman rider 21 HP engine. I change oil and filter every 2 years. No oil consumption. Out: M1 10-30 In: M1 10-30 Filter: MC FL 910S

Last month I had a trans shop drop the pan (The pan is very hard to remove) and install a new filter. I supplied the M1 ATF as that shop did not carry M1 ATF. There was about 35K on the fluid, and around 75K since I last changed the filter. This trans still shifts great up and down with no...