[Antetokounmpo]

Ah yes, the bi-monthly oil thread.

[riczon.335i]

I think we have these threads come up every once in a while lol, I use 5w40 Liqui Moly Molygen every 5k

T6...change it when the car tells me to add a quart lol

[feuer]

Originally Posted by Antetokounmpo

Ah yes, the bi-monthly oil thread.

If they grant me moderator capacity I would delete all of them. Leterally all of them.

Originally Posted by FCobra94

T6...change it when the car tells me to add a quart lol

Yeah, pretty much what I do. Sometimes I change the oil within 48h, if I have track weekend, that oil is done. Either 0w-40 or 5w-40 Rotella T6

[nicky dj]

Anyone using 5w-30? My shop tuner recommended I use it because of the lower viscosity it warms up faster and just gets around the case faster so I've been using Castrol 5w-30 ever since. Also because I don't have any oil leaks per se the thicker oil doesn't really need to seal in any manner.

I find that 9 out of 10 people use 5w-40 however. :

[iqraceworks]

Originally Posted by nicky dj

Anyone using 5w-30? My shop tuner recommended I use it because of the lower viscosity it warms up faster and just gets around the case faster so I've been using Castrol 5w-30 ever since. Also because I don't have any oil leaks per se the thicker oil doesn't really need to seal in any manner.

I find that 9 out of 10 people use 5w-40 however. :

From what I can find.....5w-30 and 5w-40 are both approved weights of oil to run.

But if you are running the car hard (most do), I would run the 5w-40.

[studio54]

Correct me if i am wrong ?
i think 5w40 or 0w40 is not a big difference, it's just that the 0w40 is a bit more fluid at cold than a 5w.

[iqraceworks]

Originally Posted by studio54

Correct me if i am wrong ?
i think 5w40 or 0w40 is not a big difference, it's just that the 0w40 is a bit more fluid at cold than a 5w.

Exactly. At running temp, they are the same viscosity, but in cold temps the 0w doesn't get as thick.

[TheMidnightNarwhal]

Originally Posted by iqraceworks

Exactly. At running temp, they are the same viscosity, but in cold temps the 0w doesn't get as thick.

Not really. At -20c they are very similar. It's when you get into extreme temps like -35 or -40 I think that the 0W starts to actually make a difference.

[iqraceworks]

Originally Posted by TheMidnightNarwhal

Not really. At -20c they are very similar. It's when you get into extreme temps like -35 or -40 I think that the 0W starts to actually make a difference.

Yeah....I knew it had to do something as far as colder temps, I just couldn't remember how cold was "cold". There is some great reading out there on oil......but it will bore you to death 😀

[TheMidnightNarwhal]

Originally Posted by iqraceworks

Yeah....I knew it had to do something as far as colder temps, I just couldn't remember how cold was "cold". There is some great reading out there on oil......but it will bore you to death 😀

Yeah I know, I did a whole lot of reading on the subject since I really was limiting to 0W oils only, but then concluded 5W was perfectly fine even for Ottawa weather where sometimes it can hit -30.

Originally Posted by nicky dj

My shop tuner recommended I use it because of the lower viscosity it warms up faster

Lower viscosity oil warming up faster..??

Find a new "shop tuner"

[RoughKnight]

my mechanic swear by Fuchs oil

[nicky dj]

Originally Posted by FCobra94

Lower viscosity oil warming up faster..??

Find a new "shop tuner"

Says it's thinner.

Anyways, I'm tuned on a ethanol map, should I go with the thicker w-40 oil and why?

No one in oil threads answer why they are running the oil viscosity they are running other than brand and weight.

[MightyMouseTech]

Originally Posted by nicky dj

Anyone using 5w-30? My shop tuner recommended I use it because of the lower viscosity it warms up faster and just gets around the case faster so I've been using Castrol 5w-30 ever since. Also because I don't have any oil leaks per se the thicker oil doesn't really need to seal in any manner.

I find that 9 out of 10 people use 5w-40 however. :

Most of the Euro 0W40 and 5W40 are almost 30 weight oils, so there is only minimal difference. If you compare the viscosities of Castrol 0W30 and 0W40, they are nearly the same.

[studio54]

Originally Posted by TheMidnightNarwhal

Yeah I know, I did a whole lot of reading on the subject since I really was limiting to 0W oils only, but then concluded 5W was perfectly fine even for Ottawa weather where sometimes it can hit -30.

but the difference in price is minimal so what's the point ? 0w or 5w it's almost the same price.. so why not running 0w instead of 5w ? for a few bucks or it doesn't matter ?

[MightyMouseTech]

Originally Posted by studio54

but the difference in price is minimal so what's the point ? 0w or 5w it's almost the same price.. so why not running 0w instead of 5w ? for a few bucks or it doesn't matter ?

Many 5w oils are just as thin as 0W oils at temps like -10 or -20. It's only at -40 and -50 there is a definite difference. You really have to look at the specs at the exact oil you are looking at. I have switched from Castrol 0W40 to Pennzoil 5W40, as it has LL-01, where Castrol is not. The Pennzoil is actually quite thin when cold. Just not rated for -60 like the Castrol.

[studio54]

Originally Posted by MightyMouseTech

Many 5w oils are just as thin as 0W oils at temps like -10 or -20. It's only at -40 and -50 there is a definite difference. You really have to look at the specs at the exact oil you are looking at. I have switched from Castrol 0W40 to Pennzoil 5W40, as it has LL-01, where Castrol is not. The Pennzoil is actually quite thin when cold. Just not rated for -60 like the Castrol.

So there is no reason to run 0w instead of 5w if you don't live in north pole ?

[MightyMouseTech]

Originally Posted by studio54

So there is no reason to run 0w instead of 5w if you don't live in north pole ?

Need to check the specs of the oil.

[TheMidnightNarwhal]

Originally Posted by studio54

but the difference in price is minimal so what's the point ? 0w or 5w it's almost the same price.. so why not running 0w instead of 5w ? for a few bucks or it doesn't matter ?

Yeah but the issue isn't money it's availability. All the oil brands people were recommending was 5W-40 like Liquy Moly. And now the LL01 spec that is cost effective iis carried by the Pennzoil 5w-40 only it seems,

[studio54]

Originally Posted by TheMidnightNarwhal

Yeah but the issue isn't money it's availability. All the oil brands people were recommending was 5W-40 like Liquy Moly. And now the LL01 spec that is cost effective iis carried by the Pennzoil 5w-40 only it seems,

As i order online, 0w40 or 5w40 is the same with the price, or like 2 or 3 $ difference and avaibility is not a concern, all in stock.

I don't know if Motul 300V is really in the specs, it runs well anyway. At the beginning i ran Castrol Edge but i didnt see any difference. Price was also almost the same on websites. (with 0 to 5 dollars difference for 8 liters)

0w means it's more fluid at cold than 5w maybe it's too much thinking when weather is not so cold but anyway, i run 0w40 since 2 years with no problem.

At all it's good quality oils, Motul , Castrol, Mobile or any others.

[Sgop335]

Originally Posted by studio54

As i order online, 0w40 or 5w40 is the same with the price, or like 2 or 3 $ difference and avaibility is not a concern, all in stock.

I don't know if Motul 300V is really in the specs, it runs well anyway. At the beginning i ran Castrol Edge but i didnt see any difference. Price was also almost the same on websites. (with 0 to 5 dollars difference for 8 liters)

0w means it's more fluid at cold than 5w maybe it's too much thinking when weather is not so cold but anyway, i run 0w40 since 2 years with no problem.

At all it's good quality oils, Motul , Castrol, Mobile or any others.

I rarely post in oil threads. But heres some food for thought...
There are different types of oil users, enthusiasts and commuters.
The enthusiasts go to a different level in their oil search...is it grp 4/5 or grp 3. Is it required, probably not. But they are enthusiasts nothing else can do. So why is this relevant? Because most (or may be all) 5w40 oils are hydrocracked. Meaning grp 3. Only 0w40 and 0w30 oils can be grp 4 /5. This doesnt mean all 0w40 are grp 4, not at all. But they can be. Those synthetic base stocks give them the VI. So in addition to oil properties some ppl care about its base stock composition. As a result, 0w oils have a smaller gap between the 40c number and 100c number which is desirable. An ideal oil is one which has the same viscosity at all temps (doesnt exist)