Mobil 1 10w40 question

I was looking into some Mobil 1 10w40 synthetic oil for my next oil change and I am finding their high mileage synthetic is the only one that comes in 10w40. The normal synthetic that I use in my cars does not come in 10W40.

Is this what everyone is using if you're using Mobil 1?

know a place where I can get any (5qt container)? Doesn't seem to be available at any of the stores like AutoZone, Advanced Auto, WallyWorld, or NAPA when I checked online.

Wallyworld is the only place I've ever seen it in the 5qt jug. They stopped carrying it here for a while, complained to a friend who is a store manager and it came back. Turns out he likes it too and was pissed when they took it out.

I checked online at wallyworld and they were sold out of all mobil 1 oil. The message on the site states it's not available in my local stores. I'll go check in person.

Jeggs and Summit don't carry Mobil 1, only Royal Purple (which I would consider).

Who knew this oil would be so elusive???

How about VR-1? Alot more powerful engines than yours are running it here with no problems. Easy to find,even Autozone has it. When was the last time anyone lost an engine using a quality ZDDP oil no matter what the brand was due to the oil being used?

89Martinique wrote: I have been running 10w-30 Mobil 1 for a few years now and have had no prob.

I thought it needed to be at least 10w40? Wouldn't 10w30 be too thin?

I have three cases of Mobil 1 5w30 at my house and it is easy to find locally. I just was hesitant to use it because the manual stated the motor needed 40 weight.

JPASS wrote: 89Martinique wrote: I have been running 10w-30 Mobil 1 for a few years now and have had no prob. I thought it needed to be at least 10w40? Wouldn't 10w30 be too thin? I have three cases of Mobil 1 5w30 at my house and it is easy to find locally. I just was hesitant to use it because the manual stated the motor needed 40 weight.

Did you look at the link I posted above? The 10w30 m1 doesn't have the required zddp either. I know it can be hard to differentiate good info from bad sometimes, but all the facts are right in front of you.

Same story on the m1 5qt jugs at walmart here... Went away for a while but now seem commonplace.

You can go synthetic with the vr1 if you want to but the conventional is also very good.

TRBenj wrote: JPASS wrote: 89Martinique wrote: I have been running 10w-30 Mobil 1 for a few years now and have had no prob. I thought it needed to be at least 10w40? Wouldn't 10w30 be too thin? I have three cases of Mobil 1 5w30 at my house and it is easy to find locally. I just was hesitant to use it because the manual stated the motor needed 40 weight. Did you look at the link I posted above? The 10w30 m1 doesn't have the required zddp either. I know it can be hard to differentiate good info from bad sometimes, but all the facts are right in front of you. Same story on the m1 5qt jugs at walmart here... Went away for a while but now seem commonplace. You can go synthetic with the vr1 if you want to but the conventional is also very good.

I saw your link, I was simply replying to his post. I have been using Mobil 1 since the mid 90's and use it in everything I have ever owned. He stated he used the 30 weight with no problems and my concern was not with the additives, but with the weight.

Previous owner said he always used synthetic and I am a little hesitant of switching to Dino oil after having run synthetic for so long. Motor has 1600 hours on it.

Ideally I would like the 15w50 if I can find it, but unfortunately I am having a hard time with that now. The Valvoline may be easier to get. I just have to make some calls today to see what is available locally.

I do believe I can get Royal Purple locally as well, but not sure how good it is for my motor in regards to the additives.. I hear and read good things about RP, but have never used it personally.

I like your style Paul. Keep it in stock haha.

Internal clearances (bearings, etc) will dictate oil pressure.

1200ppm of each zinc and phos is what I've read to be a safe level.

anyone have any suggestions or is it just to thin
10W30 Amsoil Z-Rod Oil synthetic = 95,360 psi
zinc = 1431 ppm
phos = 1441 ppm
ZDDP = 1400 ppm

I have a case of the AMS Oil 10-30 should i not use it will it hurt anything ive read our engines need 1200ppm zinc and 1200ppm phos this 10-30 has 1400 of each but will it still be too thin
10W30 Amsoil Z-Rod Oil synthetic = 95,360 psi
zinc = 1431 ppm
phos = 1441 ppm
ZDDP = 1400 ppm

its really low in zinc and phos needs 1200+
20W50 Castrol GTX ,API SN conventional = 96,514 psi
zinc = 610 ppm
phos = 754 ppm
moly = 94 ppm

samudj01 wrote: Is castrol gtx 20w50 good enough?

Not for your 1999 Sport. You need zddp of at least 1400.

gun-driver wrote: I got tired of running around trying to find the right oil every time I wanted to change the oil. So now I go to my local NAPA and order a case of VR-1 20-50, pick it up the next day and when it is about gone I order another. PROBLEM SOLVED

+1
When I'm down to a case (6qts) I order 2 more.