Nissan 370Z Forum - Increased Valve Noise After Change To Amsoil

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Nissan 370Z Forum (http://www.the370z.com/)

- Nissan 370Z General Discussions (http://www.the370z.com/nissan-370z-general-discussions/)

- - Increased Valve Noise After Change To Amsoil (http://www.the370z.com/nissan-370z-general-discussions/24266-increased-valve-noise-after-change-amsoil.html)

ImportConvert

08-29-2010 11:28 PM

Quote:

Originally Posted by Holliday (Post 699984)

That is very true about viscosity. I believe the OP was referring to the webpage on their recommendation for the 0W30. You should always choose the oil best for your local temps and driving habits. 0W30 in California this time a year might be to thin? They also list two different types of 5W30 you can use. Here are the properties for each oil:

Every oil for our 370Z
AMSOIL Product Recommendations - 2010%7cNISSAN%2fDATSUN%7c370Z%7cM

Signature Series 0W-30 100% Synthetic Motor Oil
AMSOIL - Signature Series 0W-30 100% Synthetic Motor Oil (SSO)

SAE 5W-30 100% Synthetic Motor Oil
AMSOIL - 100% Synthetic 5W-30 Motor Oil (ASL)

Extended Life 5W-30 Synthetic Motor Oil (XLF)
AMSOIL]AMSOIL.com HTTP 404 Error

I run 0-30GermanCastrol in every car I have owned (except a 5.0 with a built (H/C/carb-conversion) engine with trouble that I never diagnosed (compression even, etc.), which DRANK oil, I ran 15-40 Rotella T in that. Horrible.)

In my LS1, it cut consumption vs. 5-30 Mobil one from 1qt/2500mi to 3/4qt 4500mi.

0-30GC is thicker than any 5/30 out there that I am aware of other than the other true group IV's like AMsoil and Redline, which I am not familiar with their ratings as I have not used them.

SoCal 370Z

08-29-2010 11:32 PM

Quote:

Originally Posted by iwasgointo (Post 699217)

"...and drove 32 miles to an excellent twisty road that's about 8 miles long and a favorite of motorcyclists.

Was there any increase in altitude associated with this road?

Lug	08-30-2010 11:30 AM

Quote:

Originally Posted by spearfish25 (Post 699443)

Anyone have any proof that valvetrain clicking loudness is associated with any problems? I thought not.

Boy, you don't give people a lot of time to answer, do you.

My experience was I had some valvetrain click in my engine and my dog died the very next day! :(

ZedZed

08-30-2010 12:29 PM

Quote:

Originally Posted by Lug (Post 700398)

My experience was I had some valvetrain click in my engine and my dog died the very next day! :(

What was your dog doing in the engine :confused:

Holliday

08-30-2010 01:23 PM

Quote:

Originally Posted by ZedZed (Post 700477)

What was your dog doing in the engine :confused:

:icon18:

Lug	08-30-2010 04:49 PM

Quote:

Originally Posted by ZedZed (Post 700477)

What was your dog doing in the engine :confused:

Dog power + Horse power = DogHorse Power! Duh! :rolleyes:

iwasgointo

08-30-2010 07:29 PM

Quote:

Originally Posted by SoCal 370Z (Post 699997)

Was there any increase in altitude associated with this road?

No the road is sea level. The road is twisty, but not a twisty mountain road.

iwasgointo

08-30-2010 07:35 PM

Quote:

Originally Posted by Holliday (Post 699984)

Good point. I intend to continue using AMSOIL, but I will try a different viscosity for my next change.

I was thinking of trying the European spec oil they offer, but I wonder if this engine can tolerate a 5w40 oil?

SoCal 370Z

08-30-2010 07:42 PM

Your engine was already at operating temperature and therefor at a higher viscosity than 0. Why not have Blackstone do a oil analysis for you? I would not increase oil viscosity past Nissan's recommendation.

Zsteve

08-30-2010 07:48 PM

Quote:

Originally Posted by Lug (Post 699307)

That may be true but once I put Royal Purple in my engine and my dog died the very next day! :mad: I'm just sayin....... :(

so thats how you can get rid of the things.

sonic370

08-30-2010 07:51 PM

0/w30....5/w30.....10/w30.....
there seems to be more oil choices then z's on the road...
regular or synthetic......

i'm betting you could run wal-mart super tech "which no one ever will"
change it every 3000 miles and it wouldn't make a difference.

that statement i know is over kill. but so is the topic of oil.
what to use,when to change it, how much is my engine burning if any.

ok i'm off my soapbox.sorry to ramble

Zsteve

08-30-2010 07:55 PM

I grind up some miata doors to micro levels and add them to my oil so that they can strengthen my valves. 5w30M

SoCal 370Z

08-30-2010 07:55 PM

Quote:

Originally Posted by sonic370 (Post 701108)

i'm betting you could run wal-mart super tech "which no one ever will"
change it every 3000 miles and it wouldn't make a difference.

I wouldn’t take that bet because you're right! Old school, but good school and still followed to the tee by many a mechanic on their own vehicles with basic dino.

ImportConvert

08-31-2010 01:21 AM

Quote:

Originally Posted by SoCal 370Z (Post 701089)

That "0" and that "30" are very misleading and pointless, imho. Forget they are on the bottle and go with cSt ratings and you will have a better handle on things.

You would have me belive that oil gets thicker as it gets hotter.

I would have you belive that if you send me $50,000, I will sell you my bridge in NY.

ImportConvert

08-31-2010 01:26 AM

Quote:

Originally Posted by SoCal 370Z (Post 701117)

I wouldn’t take that bet because you're right! Old school, but good school and still followed to the tee by many a mechanic on their own vehicles with basic dino.

I think the ad-pack is as, or more important than the base-stock in many cases. You need good base-stock, but the ad-pack is what makes many oils good for what they are good for (Shell Rotella T for flat tappet, etc. etc.)

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