3-Pack 5-Qt Mobil 1 FS European Car Formula Full Synthetic Motor Oil (5W-40) Expired

What Kirkland/Amazon/Walmart do is buy a "market general" product from Warren that is made using a very basic additive pack (API SP/dexos1), a standard group III base oil and a cheap OCP VM. These products are what we formulated as bare bones, vanilla products which means you put in only enough additive to meet the absolute minimum spec requirements. Additive treat rates 8-9%

A Mobil 1, Pennzoil Ultra, Castrol EDGE are all proprietary products that these companies spend millions to develop. They use almost 2x the amount of additives, (around 13-16%) Plus Mobil still uses some PAO which is group IV. They also use a cleaner star polymer which lasts longer and burns cleaner.

We test these products in actual fired engine tests for piston deposits, sludge, wear, among others. These are the tests GM approves for dexos for example and in the "market general" product the piston deposits are pretty visible but passing (low dispersant content, dirty OCP viscosity modifier) and in the "premium" products they are almost new looking thanks to much higher dispersant loads, more antioxidants, and of course the star polymer VM which burns cleaner.

Now to a regular person sure they all seem similar as you don't tear your engines apart, and if you trade your car in every 3-5 years, it will not matter to you, but for people with turbos, or keep their cars longer, these "premium" engine oils will make your engines and turbos last longer and maintain their fuel economy and power longer.



I used to make these products before I retired so feel free to ask questions if you're curious.

Pennzoil Ultra Platinum should still have around 1000ppm calcium most engine oils meeting GF-6 LSPI have around a 60/40 split of calcium/magnesium detergents to prevent Low speed preignition or engine knock. Only the older API SN and older were mainly all calcium formulas with maybe 1500ppm calcium and no magnesium. (Mobil 1 and Castrol EDGE always had magnesium even in the old formulas). That said it should easily meet GM dexos1 but just so you know GM charges a royalty fee so for every product with dexos on the label you pay a % royalty on sales... we used to hate that as it was a cash grab from GM on a spec that was only slightly higher than API. That said almost anything meeting API SP would likely meet GM dexos1.

I don't really want to weigh on on Pennzoil vs Mobil 1, I'll just say both are what I call premium engine oils meaning they use high levels of additives (more than spec min) and clean VM. Pennzoil uses a GTL Group III+ base oil which I know tends to run a little cleaner than regular Group III+ base oil. Mobil 1 however still uses what looks like 20-30% PAO which is very cool in my book as PAO is still my favorite. Personally I'd be fine using either.

For those niche oils like Liqui Moly those meet euro spec it is a very good product and meets all of the top OEM specs like VW, Porsche, BMW, MB etc. so top of the line additive pack and it seems like it could contain 10-30% PAO so definitely a great oil. my old coworker swears by it (has a VW).

Amsoil... I'm not so sure, they're a little like the wild west to me as they do what they want which means crazy additive packs, race oriented products which are vastly different than mass market car engine oil. I'd say good but take it with a grain of salt as if you use a high zddp oil in your new car you might kill the catalytic converter early (ask me how I know lol, rookie mistake).

Hope that helps, FYI that's just my opinion.

oh one last note, if you see a product meets ACEA, MB 229.xx, VW 50x/50x etc. you''ll know it's a top tier engine oil with a very strong additive package and probably uses the expensive, cleaner VM.

0W-16 is on sale too.


https://www.walmart.com/ip/Mobil-...om=/search