Which oil to choose? Oil gurus, please, chime in!
 

Hello! Trying to choose the better oil for my VQ35HR engine (I believe, it is similar in oil requirements):

- Motul Eco-Clean 5w30 C2 - "ACEA A5 / B5 / C2 - APPROVALS API SM / CF
RECOMMENDATIONS: Peugeot and Citroen HDi engines with or w/o Diesel Particulate Filter (DPF). ACEA developed ACEA C2 standard for lubricants with low friction, low HTHS (< 3.5 mPa.s), reduced Sulphated Ash, Phosphorus and Sulphur content (Mid SAPS). Do not mix with lubricants not ACEA C2 compliants."

- Motul X-Max 0w40 - "STANDARDS API SM/CF - ILSAC GF-4
APPROVALS FORD M2C WSS 937 A (FORD FOCUS RS 2.5 Duratec)
RECOMMENDATIONS NISSAN, JAGUAR, LAND-ROVER, FORD. Numerous OEMs such as NISSAN, JAGUAR, LAND-ROVER, etc… recommend to use a lubricant with 0W-40 viscosity grade and API SM for most of their sporty vehicles like for example the NISSAN GT-R, 370Z, 350Z,… MOTUL 8100 X-max 0W-40 formulation is the perfect balance between fuel economy linked to its
viscosity grade and outstanding lubrication (high HTHS > 3.5 mPa.s)."

There's explanation of HTHS here: Welcome to Motul , but the main question is which is better for our engines - low HTHS (< 3.5 mPa.s) - Eco-Clean or high HTHS ( > 3.5 mPa.s) - X-Max?

How cold is it when you start your car?

What temp does your oil get to on average?

How hot does your oil get max?

This is a widely discussed topic, but many forum members use and recommend Redline.

I use Agip Super synthetic but most people have great success withe Redline or German Castrol

+1

Motul's good, but most people went with Redline. Personally i use HKS's and they work great.

RedLine.

this should be more about type than brand.. oil is pretty much oil

Your not serious right?

Guys, I know about Redline and Castrol, but I need to choose between these two oils: with the low HTHS (< 3.5 mPa.s) - Eco-Clean or with the high HTHS ( > 3.5 mPa.s) - X-Max. Which would be better?

"The concept exists of High HTHS and Low HTHS: A low HTHS oil has a lower viscosity at high temperature (<3.5 mPa.s) than that of a so-called High HTHS oil (>3.5 mPa.s). Please note that the “mPa.s” is a unit to measure viscosity. This notion is important as it allows for the classification, on the one hand, of fuel economy oils having a low HTHS and, on the other hand, of high protection oils having a high HTHS."

dead serious.. did they invent a new 'oil' while i was sleeping?

You'd probably get the answer you're looking for from - Bob is the Oil Guy

Your statement is a little vague. "Oil is pretty much oil" Yea as in they all lubricate but I'm pretty sure some do that in better ways then others along with temp control engine cleaning ability and the length the oil can last. If oil was pretty much all the same AMG, Dodge Viper, Corvettes etc would all come factroy filled with AutoZone Valuecraft oil rather then Mobil1

yet ferraris come with Shell and Penzoil.. and BMW with Castrol... weird.


but you're right... it was a vague statement... it was meant to get people off of the brand name focus and on to what type of oil each person actually needs.

its based on driving type..

like Nick911 said... go read

I've spent a lot of time over on BITOG and done lots of analysis on the oil in my own cars.

I've found Penzoil Platinum to work wonderfully even for 10,000 mile oil change intervals and I will be using that in my Z in 5W30 with a Purolator Pure One oil filter.

They don't make a Penzoil Platinum in 10W40 which the built motor in my supercharged Challenger needs, so I use Mobil1 there as it came out 2nd best in my oil tests over about 5 years of testing.

Amzoil, Redline, Royal Purple, Motul, are all fine oils, but they're boutique oils and I find the cost for benefit not so good.

I can walk in to Wally World and grab a 5qt jug of both Penzoil Platinum and Mobil1 and call it good.

My .02 cents no change for your 5.

Ok, thanks for your comments, though no one really helped me in choosing :)

Anyway, I'm leaning towards Motul X-Max 0w40 - hope this viscosity would be good for our engine, but feel free to comment my choice ;)

Amsoil






DAN

mobil 1...oil and filter

For the two you've listed - use the 5W30.

we can't give any opinion until you list specifics..

my oil cooler and ambient temps lately are keeping my oil from getting to 180... 160 on the freeway... i just filled it with 0w-20..

with my cooler i fabricated a block off plate. Even with the temps down to 40*F I was able to maintain a 175-180. At 80*F I maintain about 195, my oil doesn't change to darker colors till about 4000.

I think Mobile 1 is a good standard to go by for any performance vehicle. haven't read a bad review about it yet.

It really is, i know of a 350 that has 187000 on it with mobil1 oil and frahm filters lol. 10,000 on the pan of oil and 5k filter changes.

I've been using Motul 8100 Eco-Energy 5w30 for last 40000 miles:

Viscosity grade SAE J 300 5W-30
Density at 20°C (68°F) ASTM D1298 0.848
Viscosity at 40°C (104°F) ASTM D445 57 mm²/s
Viscosity at 100°C (212°F) ASTM D445 10 mm²/s
HTHS viscosity at 150°C (302°F) ASTM D4741 3.4 mPa.s
Viscosity index ASTM D2270 163
Pour point ASTM D97 -36°C / -33°F
Flash point ASTM D92 226°C / 439°F
Sulfated ash ASTM D874 0.98% weight
TBN ASTM D2896 10.3 mg KOH/g

I can't say this Eco-Energy oil goes to the "limp" mode too often, but I feel I need something more prone to overheat. And i choose only between these oils (or maybe some other Motul's):

Motul 8100 Eco-Clean 5w30 C2 (this is recommended oil for my car by Motul site):
Viscosity grade SAE J 300 5W-30
Density at 20°C (68°F) ASTM D1298 0.845
Viscosity at 40°C (104°F) ASTM D445 57.9 mm²/s
Viscosity at 100°C (212°F) ASTM D445 10.4 mm²/s
HTHS viscosity at 150°C (302°F) ASTM D4741 3.0 mPa.s
Viscosity index ASTM D2270 171
Pour point ASTM D97 -42°C / -43.6°
Flash point ASTM D92 232°C / 449.6°
Sulfated ash ASTM D874 0.80% weight
TBN ASTM D2896 8.0 mg KOH/g

and Motul 8100 X-Max 0w40 (this oil is recommended in the Motul technical annotation, as they say it is good for GT-R, 370z, 350z):
Viscosity grade SAE J 300 0W-40
Density at 20°C (68°F) ASTM D1298 0.842
Viscosity at 40°C (104°F) ASTM D445 74.9 mm²/s
Viscosity at 100°C (212°F) ASTM D445 13.3 mm²/s
HTHS viscosity at 150°C (302°F) ASTM D4741 3.6 mPa.s
Viscosity index ASTM D2270 182
Pour point ASTM D97 -45°C / -49°F
Flash point ASTM D92 222°C / 431.6°F
Sulfated ash ASTM D874 0.80% weight
TBN ASTM D2896 7.0 mg KOH/g

So, which oil will help me with the "limp" mode more - with the HTHS 3.6 (0w40) or HTHS 3.0 (5w30)?

LMAO :bowrofl: idk why that made me laugh so hard but it did

which oil do I need to use for my Z?
 

my previous 08 si, i used to use Castrol Edge 5W-20 4qt and half.
Can anyone recommend me a good oils for Z?

Thanks in advance,

Oh god... dude. This always sparks the dumbest debates. to kill it in advance. By page 2, guys will have viscosity charts, from Bob the oil guy.

My personal preference in order is. Redline and Royal Purp tied for first
Castrol edge 5w-30 is my budget choice. But the first two run so well,I would just shell out the extra cash.
I don't like the contracted nissan dealer synthetic in our cars but others have charts that say different. Lol. I'm basing mine off taking my car over 140mph. Not charts. Hope that helps Lol. :tup:

There are thousands of threads on this though. You could have done a search.

Uh oh...

IBTL:hello:

Hands down, without question the best oil for the 370? You just need to do a quick search.

Wesson cooking oil has yielded good results!!

What is your CI with WCI? Have you obtained BTOG oil analysis?

Seriously though, as long as you change your oil at recommended change intervals it doesn't really mater much. You can waste hours researching this on the forums and you will find your self going in circles.

Lot's of people here use Redline. I was chugging Amsoil for years before the Z. Problem with that and any other oil that isn't sold off the shelf is that you have to change it yourself. I'm currently using M1 full synth and change out every 3.75K but I'm planning on switching to Pennzoil Ultra. Oil analysis is great and I can find local service that offers it. I figure if it's good enough for Ferrari then it's good enough for the Z.

Mobil 1 or Castrol EDGE usu does the trick for me! ;)

:shakes head: Newbie did not search.

I-B-T-L

:icon18:

Oh shyyt. I been wastin' money... I'm switchin' today... :icon18:

Redline 5w-30, full syn esther base, been running it for 40k, very successful, zero oil burn, no valvetrain noise.

Use some VTECH SUPER OIL.

"Oils Ain't Oils"
 

Time for another oil thread.

So I've faithfully Redline oiled everything in my car from the engine oil (with purolator pure1 filter, of course), tranny, and diff since 3k miles based on the recommendation of this forum. About 40k miles later and the car is running fine. I did my own hw on redline and found how it's a group 5 oil and has the ester that Nissan recommends. I've kept using it based on the faith of other users on this forum and on the peace of mind that I'm giving the z the best stuff.

But.. Some engine oil wear tests show redline isn't so great. One shows mobil1 being better, one shows mobil1 being better than royal purple. One shows royal purple being better than both mobil1 and redline, in which this is displayed in this PDF: http://www.animegame.com/cars/Oil%20Tests.pdf

So what do you guys think?

I think that within any given API service classification, oil is oil.