Anyone used this oil?

 

Silver bottle or black.
I've used both. I like the black bottle, that is the blue oil, full syn, why 5w50?

 

This one;


5w50 is only one I can get local. Is it a problem?

 

are your bearing clearances set up for 50 weight oil?

 

Mains .0018, Big ends .0015

 

Whats the setup? And i'm at work, pics dont show up.

50w is too thick for that clearance setup though.

 

That's to thick for that kind of clearance. Also when using a multi weight oil it's best to keep the two numbers are close as possible. Closer the numbers the less amount of polymer additives in the oil. I'm in a warm climate and run .0020 on my bearings and run straight 40 weight VR-1 non synthetic oil in my car and in my transmission with great success. Colder
Climates will need the double weight oil though

 

I've heard from another tech here, that the w doesn't stand for weight, it stands for winter.

Just alittle tid.

To add, the op should run a standard 10w-30/40 or a 5w-30.

 

Yes it stands for winter weight. It's 10 in cold and once it was up would be 30 is running a 10w30 motor oil. They have to add polymers to the oil that constrict and expand I believe when oil is cold and hot. The closer the number the less additive and better the protection. I don't remember 100% of the article I read so I can't really get technical on the explanation. That's about the gist of what I read on the article about oil weights

A straight weight oil would obviously just say sae 30 or sae 40 etc.....

 

Turbo b16. 400whp.

I didn't think it would hurt using a 50w oil, it should offer decent protection even when cold as it's rated at 5w-50? Also it has zinc additives

 

What ill effects would it have on my motor using a 5w-50 oil?

 

It's still to thick oil run 10w30 and you'll be just fine with that weight. If summr gets warmer go to the 10w40 if you really want to but isn't nessesary

 

Can someone explain to me though why it's better to run a certain grade/weight of oil?

 

Your bearing clearances dictate what weight oil you run. Tighter the clearance lower weight of oil you run. Larger clearance thicker oil. That's about as plain as it gets

Looser clearance slots more space for thicker oil film for better bearing protection. But that doesn't mean tighter clearances don't work either it's all preference

 

No, i was saying, the "w" stands for winter, not the word weight.

I know all of that already.

The first number is cold, the second is hot.

From what i understand, Colder climates need thinner oil, and vice verses.

 

There's a good bit of information on this site as to why and how oil weight is dictated, search, also google as well.