0w-40 ok to use?
#22
Senior Super Moderator
MY350Z.COM
MY350Z.COM
iTrader: (13)
Wait...you guys use oil in your Z?
#25
Registered User
Do you stay at exactly 212*f/100c at the track? That is the viscosity the VQ was spec'd. I've seen temps around 260*f at the track. You would be way below the proper viscosity at that temp.
Originally Posted by cashmoney03
Bold statement to make with no data presented to support it. Especially given the volume of folks running 5w-30 in not just the z but other much higher performing engines.
Originally Posted by JONESBOY
Wow.
How long have you had your Z?
How many miles on it?
You have any data to support your statement?
How long have you had your Z?
How many miles on it?
You have any data to support your statement?
We have an engine with a timing chain. Have you felt the resonance at 2300-3000rpms? You need an oil with the highest HTHS, yet stays with-in the OE oil PSI specifications. 0w40 provides that.
Last edited by Bigsyke; 09-28-2014 at 09:14 PM.
#27
350Z/370Z Tech Moderator
MY350Z.COM
MY350Z.COM
#28
Registered User
Join Date: Aug 2018
Location: Watsonville
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
#31
General & DIY Moderator
MY350Z.COM
MY350Z.COM
iTrader: (64)
We're fortunate to have an excellent thread with plenty of factual data on what works well in the VQ35HR:
https://my350z.com/forum/vq35hr/3003...-analysis.html
For my money, I use Mobil 1 0-40W FS in both my race (HR) and street (DE) Zs. It's available at WalMart for about $26 (in 2018) for a five quart jug, and is also on sale at most car parts chains if you'd prefer.
https://my350z.com/forum/vq35hr/3003...-analysis.html
For my money, I use Mobil 1 0-40W FS in both my race (HR) and street (DE) Zs. It's available at WalMart for about $26 (in 2018) for a five quart jug, and is also on sale at most car parts chains if you'd prefer.
#32
Sup guys I have a Nissan 350z 2004 de.
What type of oil would you guys recommend in my z. I’ve been using mobile 1 5-30w
what’s the difference between 0–40w and the 5–30w
thanks guys
what’s the difference between 0–40w and the 5–30w
thanks guys
Last edited by L0N3W0Lf; 08-10-2018 at 01:07 PM.
#33
350Z/370Z Tech Moderator
MY350Z.COM
MY350Z.COM
The numbers represent the relative viscosity (thickness, so to speak) of your oil, based on both ambient and engine internal operating temperatures. A multi-vis (multi-viscosity) oil "thins" to a lower rate for best flow when cold and "thickens" to the higher rate when hot - extremes in both ambient and op temp, say, a racing application).
First # is the thin weight (also called cold start weight) expressed as Xw (e.g. 5w or 5 Winter - the "w" does not stand for "weight" as is often confused). If it's cold out, oil will thin down to this minimum weight for cold start protection then...
Thicken up to as much as the second #, e.g. "40" for maximum protection at high running temperatures (obviously influenced by ambient temperature).
Nissan (and most mfgrs) recommend 5w-30 for most areas in North America (other areas, check your owner's manuals). Not much more protection is needed as even as there are extremes ranges of temps based on environmental factors (say negative degrees in Minnesota or Canada OR up to 110*F in Scottsdale, AZ as examples) do not require much more than this.
0w-40 then, by this logic, will thin down to 0 weight and thicken to 40 weight. But like I said, in most areas of the country, the additional swing range isn't necessary BUT it's not going to hurt.
Last edited by MicVelo; 08-10-2018 at 01:46 PM.
Thread
Thread Starter
Forum
Replies
Last Post
dTor
Engine & Drivetrain
3
08-12-2007 01:24 PM