Mobil 1 5w-30 ESP…….use it in everything?

[ChrisD46]

Once I run out of my existing stash, I am planning on using the ESP in our DI which is mainly on M1 EP 10W-30 or whatever other Euro oil on sale (lately Castrol). The book and oil cap says 5W-20. Overall I am a M1 user but wonder off sometimes due to sale prices.

Thinking the ESP may even help IVD but the jury may be out on that one. Is there any Euro approval which has IVD related testing?

I used to think running a 10W30 would help protect a DI engine from IVD but now I’m not so sure ? There reason is no oil company is putting any research into a 10W30 oil - they just aren’t . The focus is 0W30 and 5W30 for the oil companies addressing major auto maker specifications and requirements which doesn’t include 10W30. I switched to M1 5W30 EP and M1 0W30 ESP long ago in my DI engine . This past week it was time for my 10K mile CRC Intake valve cleaner treatment and the result was FAR less smoke (next to zero) and “can of marbles” sounding engine after the 1 hour soak and first after treatment drive was non - existent now . The engine had a slight hesitation after accelerating for a couple of seconds and that was it . *My point is since switching to and staying with mainstream M1 5W30 EP and M1 0W30 ESP I no longer feel IVD are a concern in at least my DI (Hyundai) engine running 4K mile / 6 month OCI’s. I believe I would have the same experience using PPP or PUP as well with low IVD. The 10W30 oils offered by major oil companies are no longer their best oils and running M1 5W30 EP , M1 0W30 ESP or even 5W30 ESP should present no IVD concerns in a DI engine with conservative OCI’s which in my opinion should be run any way in a DI engine (4K miles / 6 months).

 

[Vercingetorix]

10w-30 and Windows 95 for the win!

 

[altaylar]

xW30 ESP is really a great oil. Many of us use it on track due to high HTHS figure, it rivals 0w40 oils really.
I personally still have some 5w30 on my shelf. I was not aware of 0w30 having ester content. At the time I bought 5w30 siimply with the idea that it would have lower VII amount.

So for protection, it seems to be fantastic oil. Answering your question though, there are cases where I would not use this formula. One of my vehicles has a GM 1.5Turbo engine that calls for 0w20 oil, but for added protection I will be putting 5w30 or 0w30 on the next fill. I am thinking about Pennzoil Ultra Premium, since its viscosity is significantly closer to 0w20, almost the midpoint between ESP and a regular 0w20

 

[ChrisD46]

Based on reports from China oil marketing and the Russian auto club testing that M1 0W30 ESP may be the flag ship oil product while the M1 5W30 ESP may be a slight step behind (AN with no ester).