Awesome, welp guess they are off the list.

Was actually contemplating an EF3.

On topic though I'd would use either. Both oils would be more than fine at my OCI

 

Someone want to do a quick breakdown of what everything means in the charts? I just run recommended oils for my car and don't look too deep into them so I have no clue what I'm looking at

 

Silicon-- (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)

Boron-- (detergent/dispersant, anti-deposit buildup/anti-sludge)

Magnesium-- (detergent/dispersant, anti-deposit buildup/anti-sludge)

Calcium--- (detergent/dispersant, anti-deposit buildup/anti-sludge)

Barium-- (detergent/dispersant, anti-deposit buildup/anti-sludge)

Zinc-- (anti-wear)

Phos-- (anti-wear)

Moly-- (anti-wear)

Potasssium-- (anti-freeze inhibitor)

Sodium-- (anti-freeze inhibitor)

TBN-- Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates



I found this researching the stuff because I had the same question you had. After gathering many UOAs I wanted to know what exactly each component does. Every one looks at the zinc and phos, and thas great, but I felt there was more to it than that and that's why I have threads like these, to sort of help get a better understanding of oils.

 

i voted neither, because of calcium content. Personally i dislike high detergent content...but i would run Brand x, and change before every track day.

 

TBH neither are too great. There's some detergent on both, but the anti wear additives are low and the TBN isn't brilliant either and wouldn't be any good for extended mileage use, you'd get through 5,000km though but wouldn't use it with E85. Viscosity is on the thin side with cSt @ 9.6 and 10 @ 100*C - are these both SAE 30 oils? Just looks like pretty average oil to me, personally I wouldn't run it.

 

I did find some interesting info while trying to figure out more info about the additives in oil. Has anyone heard of slow burning and fast burning zinc content in oil?
Supposedly just looking at a high zinc content cant tell you whether an oil is all that. If the zinc content starts to burn off at lower oil temps, at higher temps you wont have much protection, and vice versa with slow burning zinc. So it seems to be that quality is more important than quantity.

I will try and find the info where I was reading about it. But this is the type of stuff I am curious about.

Thanks for everyone's responses.

 

Both of these are synthetic 10w30 oil.

 

fwiw, I think some of you folks might be surprised when I reveal which oils these are.

 

That's a good shot of moly in Brand x.. Curious to see what brand it is when you reveal. Zinc and Phos are nothing extraordinary in either brands. Calcium is high, maybe a HDEO?? Definitely for extended OCI's.

 

Bull crap ! You know squat of what you are talking about. Engines benefit from these EP additives.

 

My guesses areone being Amsoil 100% synthetic the other being Mobil1 Synthetic

 

Extended OCI with TBN's that low? I wouldn't.

 

Here we go with your BS shenanigans again. How many times now.

Unbelievable

 

TBN is not everything..... Look at other CI-4 and CJ- 4 oils, which are extended service intervals.. But i would have to agree with you. I personally like to use motor oils' with a starting TBN of 9-11.

 

I still think brad Penn is the best oil for the money.