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Any idea on Mobil product specs? Sorry new to this stuff if already discussed.

The one video was on a VW with 71K with no maintenance done prior to remove the valve deposits, guess you could say it had accumulation but don't think it was significant. They had the engine apart for both before and after. There was others that used bore scopes can't remember the details of...

I've read and seen videos were they open up the engine before and after and the cleaners did not do as much as one would hope, which led me back to trying to choose oil that will minimize carbon deposits if at all possible.

Interestingly enough, I did buy an oil catch can to install but ending up retuning it when I found out it could be used to void the powertrain warranty. Even the manufacturer of the catch can suggested that it was a possibility and if problems arise to remove the can before bring into service...

One other thing, is there a reason why I can't find the Mobil ESP X2 in store? Even the Mobil web site states "No Sellers Found". Going to have my oil changed at Infiniti in the next week or two so will need to order ESP X2 or the Valvoline Modern Engine in 0W-20 before then.

Uh, so is that good? EP or ESP X2? Forgot to take a picture this weekend and just washed it too, and now it rained bummer. Will post next time I get a chance to wash it. Agreed, not arguing about the a using a heavier viscosity, but would rather not tempt faith on my factory or extended...

Well, in the Infiniti Q50 forum someone mentioned that Infiniti may be recommending the 0W-20 due to the engine design. It may be possible that the oil galleys, tunnels, bearing tolerances etc may be smaller requiring thinner oil to circulate correctly. They may have determined from prior models...

You both beat me to it, but yes this is concerning. They changed the language in the both owners and Service Manuals. I also talked to my service manager at my dealership and he highly recommends using viscosity Infiniti recommends, you can use different brands but stay with the viscosity and...

Here is snip of the 2020 manual: There is no option for different viscosities. Again, they seem to be writing an option to avoid warranty work regarding the engine. In older owners manuals and FSM prior to 2020, they provided this chart which gave people the option to use a different viscosities:

Agreed, the Owners Manual and Factory Service Manual indicate what you just quoted, they provide no other option on viscosity. Seems like they wrote a way out of warranty work. I would love to run heavier oil but do not want to risk any issues regarding warranty plus I purchased the additional...

Wow thank you for that, very informative. And now I have another reason to not like direct injection... I use the Mobil EP in my 2009 G37, never had a problem with it and it never need a topping off before my oil changes.

The Mobil ESP X2 seems to be marketed (based on the Mobil web site) toward European vehicles, does that matter? And what does LSPI mean?

I'll looking into Castrol, never had them on the radar. I would have to order it and maybe buy enough for a few oil changes. I am planning to bring it in to the dealer to get service and will be providing the oil, the one they offer is Mobil Super Synthetic. Wanted to provide them with...

Hi, long time lurker looking for some advice. Going to go in for my first oil change really soon on my 2020 Infiniti Q50 Red Sport which is a turbo direct injection at 1K miles and planning on a OCI of 4-5K miles. This is my first turboed and first direct injection car so wanted to make sure to...