Redline 0w40, 5w40 and 10w40: What is the difference?
- Thread starter altaylar
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dnewton3
Staff member
We encourage good debate, factually based, with civil discourse. We do not allow bickering and trolling. So far, this has not gone off into the weeds.
Your report has been reviewed and there is nothing which warrants locking the thread; no rules broken.
I'm not aware of what happened above, but hold on a little because I'm waiting on a response by Red Line oils on your concern of what 40 grade oil will be best for your application.
I emailed them yesterday.
Did you contact them as well with the same question:
0W-40, 5W-40, and 10W-40 - what's the difference?
Sidebar - So, what I am picking up from this thread is that Mobil 1 Euro 0w40 formula is a solid choice? IIRC, I have only ever seen 5w40 in stock at my local Wally.. Does 5w40 get the same wrap as the 0w40?
Carry on Gents
Carry on Gents
For some reason Amsoil tech just answered this regarding your question:
^ I asked what oil of these three 0W-40, 5W-40 or 10W-40 would Amsoil recommend for '92 Ferrari 348 which is driven only in the summer in Canada.
I guessed the year of your car, hopefully is the same 3.4L V8 with dry sump taking about 11L of oil.
Still waiting on an answer from Red Line.
^ I asked what oil of these three 0W-40, 5W-40 or 10W-40 would Amsoil recommend for '92 Ferrari 348 which is driven only in the summer in Canada.
I guessed the year of your car, hopefully is the same 3.4L V8 with dry sump taking about 11L of oil.
Still waiting on an answer from Red Line.
No it does not. Atleast not from the aspects that the 0w-40 was praised for which was PAO and ester use. SP 0w-40 has no ester anymore or ANs but has more PAO than before. 5w-40 had neither for SN or SPSidebar - So, what I am picking up from this thread is that Mobil 1 Euro 0w40 formula is a solid choice? IIRC, I have only ever seen 5w40 in stock at my local Wally.. Does 5w40 get the same wrap as the 0w40?
Carry on Gents
4wd
$50 site donor 2026
This was on the website now
4wd
$50 site donor 2026
GTL/PAO
4wd
$50 site donor 2026
Think I have a jug from that era - But IIRC, lots of calcium …
4wd
$50 site donor 2026
Good for 10k in some twisty motors !
I disagree - there isn’t a personal vendetta here - what is here is your stated goal of understanding the difference -
Without telling us what you’re trying to achieve.
And you find fault with most of the suggestions. Well, it would help if you told us the whole story from the beginning, instead of dropping a few facts, then arguing, dropping a few more, and repeating the process.
You’ve got a classic car. Ferrari 348.
And you want what, exactly from your oil selection?
See, that’s the part missing. You quote an HTHS number - without saying why. You have not told us what was specified for this engine by the OEM. You have not told us the operating conditions (street, track, parades) or the oil temperature in those conditions.
So, how can we possibly help you out? What difference between the oil do you seek?
The only thing we have to go on is your choice of a certain HTHS - and even that isn’t clear. You want help, but you’re not willing to provide details, and you’re getting into arguments along the way.
If anything, given the paucity of clear goals and information - it looks like you’re trolling by moving the goalposts every time someone has a suggestion.
OVERKILL
$100 Site Donor 2021
The best OTS oil they'd tested. Applications? Basically anything. It's been the "universal" oil of this forum for many years, because it will work well in pretty much any gasoline application.
Because he asked about early 90s Ferrari 348, 3.4L, V8, dry sump.
Amsoil said in a email that they don't have oil for that engine, which sounds a bit weird to me.
OVERKILL
$100 Site Donor 2021
AMSOIL is quite conservative with their recommendations, so that doesn't surprise me.
This car called for Agip Sint 2000 10W-40:
Which is a basic A3/B4 lube, nothing exotic:
Mobil 1 0W-40 would be more than up to the task for this application.
Thanks for the info!
Yes, I also think the Mobil 0W-40 will do great.
But probably the OP reads on other forums or read AI info and there it says that owners use for that Ferrari engine Shell or Red Line.
If I was the OP I would definitely use Mobil 1 Euro 0W-40 or Pennzoil Euro Platinum 5W-40 as the most budget friendly option.
My question was this:
does anyone know what difference is there between these oils?
I did not ask what oil would be the best for my car. So I did not say whether I track it, what car it is etc. I just said that i dont drive it in cold weather so that people would not just suggest 0w because it flows faster(?).
And beyond that, your earlier post defends the oil you suggested performed great, judged by wear metals in your car. So can we use the wear metal ppm from an used oil analysis to see how well oil did? And it doing great in your car means it will do great on mine? It is okay if a random member says that, but coming from a staff member, I am having a hard time beliving it.
I’ve asked you several questions to better understand your question. To better understand why the difference matters, and to understand what parameters of oil performance are important to you.
You have failed to answer every single one of them.
The only person being difficult here, is you.
I don’t see any point in trying to understand your question any more.
Best of luck.
You have failed to answer every single one of them.
The only person being difficult here, is you.
I don’t see any point in trying to understand your question any more.
Best of luck.
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