[george]

Went to get the oil changed on the ZL1 and the 0w/40 ESP Mobil 1 oil (part # 19370233) is no longer available. Tried to order at GM parts on line states discontinued. Dealer put Mobil 1 0w/40 FS (European Vehicles) in my vehicle. This is NOT a DEXOS approved oil. I did see Amazon does have some old stock left and purchased some of the ESP 0W/40 Mobil 1. Anybody have an idea what's going on or what we should use in future. I did read somewhere that 5w/30 Dexos is a replacement for street use. I wonder if this is in some way related to oil pump failures.

[2SS Capt]

Originally Posted by george

Went to get the oil changed on the ZL1 and the 0w/40 ESP Mobil 1 oil (part # 19370233) is no longer available. Tried to order at GM parts on line states discontinued. Dealer put Mobil 1 0w/40 FS (European Vehicles) in my vehicle. This is NOT a DEXOS approved oil. I did see Amazon does have some old stock left and purchased some of the ESP 0W/40 Mobil 1. Anybody have an idea what's going on or what we should use in future. I did read somewhere that 5w/30 Dexos is a replacement for street use.

Still showing here: https://www.mobil.com/en/lubricants/...formula-0w-40/

Also in stock here: https://www.thelubricantstore.com/mo...-case-6-quarts

[m3bs]

Summit website says they can ship ESP today.

[george]

I did find some at AMAZON and Speedway but it's possibly old stock. Officially, GM states it's discontinued and unavailable. The dealer said that the FS 0w/40 was a substitute but I'm suspicious.

[2SS Capt]

Originally Posted by george

I did find some at AMAZON and Speedway but its possibly old stock. Officially, GM states it's discontinued and unavailable. The dealer said that the FS 0w/40 was a substitute but I'm suspicious.

Maybe GM discontinued their part number for it? It looks like it is still listed on the Mobil1 site and doesn't say anything about being discontinued...

[george]

I hope so. As more people get their oil done this summer, we will see. It's strange that the dealer put Mobil 1 0w/40 FS non DEXOS oil in my car. I know the phosphorus and sulphur content is higher in the FS (900 vs. 1100). I hope it will not void the warranty.

[ZX-10R]

Originally Posted by george

WI did read somewhere that 5w/30 Dexos is a replacement for street use. I wonder if this is in some way related to oil pump failures.

If you look up the viscosity for both it's a minor difference so chances of it causing oil related pump failure is basically zero
https://www.mobil.com/en/lubricants/...formula-0w-40/
https://www.mobil.com/en/lubricants/...mobil-1-5w-30/

I'm running Castrol Edge 0W-40
https://www.bobistheoilguy.com/forum...0W40__qualify_

[Revalot]

Originally Posted by george

I hope so. As more people get their oil done this summer, we will see. It's strange that the dealer put Mobil 1 0w/40 FS non DEXOS oil in my car. I know the phosphorus and sulphur content is higher in the FS (900 vs. 1100). I hope it will not void the warranty.

I'm not being a wise guy ! But if your dealer put the euro spec oil in your engine, how would you be liable ? Just keep your records/print outs, and enjoy if it's a problem, it's on the dealer.

[ZX-10R]

Seems like a catch-22 because the additive package is needed for extended life (although I don't believe in >5000 mile oil changes in general) but can potentially foul the catalyst faster

[LT4Greg]

Definitely strange but not surprising as GM changes/updates part numbers/products all the time! I’m still using 5W30 in my 2017 and not planning to switch over to the new oil as long as I can buy 5W30.

[pauly1119]

I ordered 30 quarts the other day from Walmart. I like to have a few oil changes for all my cars in stock ready to go and I change it every 500 miles. I just hit 3200 miles and I did the 6th oil change the other day. My other cars its done at 3K miles.

[ponyboy96]

I just ordered some on amazon today. None of the local auto parts stores seem to have it.

[PROMETHEUS]

Still difficult to buy at local big box stores for some reason. The best price I found was Speedway Motors. Even better when they have their discounts running and free shipping. The last time I bought it from them, I think it came out to a little less than 7 bucks a quart.

[george]

Originally Posted by pauly1119

I ordered 30 quarts the other day from Walmart. I like to have a few oil changes for all my cars in stock ready to go and I change it every 500 miles. I just hit 3200 miles and I did the 6th oil change the other day. My other cars its done at 3K miles.

I tried to get it from Walmart but the store itself doesn't have it. I think they sell it through Speedway. Do you have a part number?