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Interesting video. The possibility of using copper as an alternative to ZDDP in engine oils is explored. Then the mechanism of organic copper salts work, how they create an anti-wear layer, and why they are chosen are illustrated. Do you think copper can completely replace ZDDP in engine oils...

I'm curious about what languages do you speak. Which languages do you enjoy learning or like listening to? Are you actively investing your time to pick a language or just passive about it? I speak Arabic, Hebrew, English, Spanish and Russian.

1. Isn't a higher viscosity oil more likely to cling to metal surfaces for longer periods as a variable besides base oil polarity and metal coating? and with that in mind, wouldn't a higher viscosity but also mineral based be more appropriate for S/S or frequent warm-starts in particular? Let's...

Is there any difference between oil oxidation stability and oxidation resistance? To phrase the question in another way, Is there anything different between an oil formulated specifically for high temperature resistance and an oil with oxidation stability in mind for long drain intervals? Or...

https://www.ft.com/content/2bfced8a-f221-4100-a0b1-f18ec230bc21

Recently, it seems to me that a lot of formulations are moving away from ZDDP and going for more hBN and Mo to make up for less Zn/P. Is this shift in the AW chemistry effective long-term? I'm not saying that these AW additives are not studied or tested otherwise we wouldn't have seen them in...

You might tell me otherwise why you would not pick "this" or "that" if you would like. Sister is planning on a new ride before inflation makes prices worse than what's already on the tags. Preferably she is looking for an engine under 1.6L to drop some exponential taxes that comes with larger...

What do you think about this M Super Formula B? https://www.mobil.eg/en-eg/lubricants/consumer-products/mobil-super-synthetic-formula-b-5w-40/ FS is missing for almost a week. Supply chain problem I guess and happens once in a while. Edge 5W40 is not available as well. OCI is about due and...

As you can see in the attached screenshot, Noack Volatility is 75%. Do you think it's a typo? Have they meant it to be 7.5% and dropped a dot? I guess that would probably be the case. 75% ain't reasonable one bit. I emailed ExxonMobil and they simply replied with a link to the same PDS I was...

Yesterday, I was talking with a mechanic and he said that VIIs do not upscale neither hydrodynamic protection nor film strength. VIIs Just slow down the flow at operating temperature. I was just wondering if he's telling me a fact rather than an opinion. This discussion was interesting because I...

What's your take on this 👇

I read in the forum that sulphated ash amount for total detergents, dispersents and ZDDP, etc. Now if we know the TBN value since it's mostly reported by oil manufacturers, can we make a guess on ZDDP? Just curious about the answer.

It's currently very hot in Cairo, decided to take the scooter for my daily commute. M1 5W40 was in sump before I picked Delvac MX III 20W50. Extreme day temperature around, air-cooled engine, heavy traffic, dusty air, etc. So I need the extra ZDDP and TBN. Before I had good 75 MPG on 0W40 or...

I know it seems weird but can't help thinking about it. What if car manufacturers decided to make a dual sump design. One for cold start oil and one for operating temperature oil. This will allow us to fill monogrades that will eliminate the need for VIIs ,and thus, shearing altogether. And...

I was browsing around and curiosity took me to this Shell HX3 20W50...

A friend of mine asks if M1 FS Xw40 or 5w50 would work in his specific CNG engine use case. I don't actually know the whereabouts of CNG workings and its demands on engine oil. Should he go FS or stick to conventional 20w50 as before. Engine is 1.6 port injected and naturally aspirated, he's...

OCI, TBN, ash, etc.

It's has 165k miles on it, I've been using Regular M1 5w30 for most of the OCIs, and 5w20 sometimes when 5w30 is not on the shelves. Is it time to use Full SAPS like the FS 0w40/5w40 for a better wear protection (EPA is not square strict about CATs in Egypt) ,opt for the the ESP 5w30 (same...

I always used M1 FS 5w40 in everything with an engine with pretty good results regarding OCI, oil consumption, etc. Castrol Edge and Shell Helix are good options when M1 plays hide and seek. I own a 150cc mopped with a 25k+ miles on it and mechanics are impressed with its particular engine...