Oil reccomendadtion for a 175kw 5 litre

WiggyMK2 · 29-09-2009, 10:46 PM

Hey everyone,
Just wondering what weight/viscosity oil everyone is using in their 5 litre AUs. I looked in the specs and it was 5w30 which seems pretty thin. looking for some feedback before i change the oil in mine. Cheers

sbcb · 30-09-2009, 07:53 AM

Castrol magnatech 10w40. Cars happy enough AU1 V8 Ghia.

Mr Hardware · 30-09-2009, 10:53 AM

I'd look at a 10w30 or 15w40, Castrol or Nulon, semi-synth or full synth, based on the fact you're in SA and not knowing how many kays she's done

blueoval · 30-09-2009, 11:29 AM

Mike, as you know I use Nulon Full Synthetic Hi Tech Fast Flowing 10w/40. Havent had any issues and is a very good oil. I realise we are talking a 6 vs and 8, but I dont think you'll have any problems with it.

If your funds dont permit, you can go the Nulon everyday oil. Get maybe a 15w/40 as Mr Hardware mentioned, and see how you go.

speedzter · 30-09-2009, 03:28 PM

I've been running Shell Ultra 5w40 Full Syn, which seemed fine.
There was a bit of lifter noise when cold. Just changed to Penrite HPR 10 Semi Syn, which is a 10w50.
No lifter noise now, and may be just my imagination, fuel economy appears a touch better ??

**SSD-85** · 30-09-2009, 06:05 PM

Mine's got a few k's on it, and im running nulon 15w40. And its beautiful. Magnatec is rubbish.

Veefore · 30-09-2009, 06:16 PM

Quote:

Originally Posted by Scotty85

Mine's got a few k's on it, and im running nulon 15w40. And its beautiful. Magnatec is rubbish.

I agree with your assesment of magnatec. In oil sampling I had 50% more wear with Magnatec than I did with Penrite HPR Gas10. The oil sampling that i have done confirms that for the temperatures here (Perth) I should NEVER use an oil rated less than 50w.

Erich · 30-09-2009, 06:34 PM

hmmm - ive been an avid lover of Magnatec but I admit, she is very thin after 5k of travel

dub racing · 30-09-2009, 08:35 PM

i use penrite hpr 30 in my my 5.0 in my EF its a bit thicker but i dont have oil pressure prbs on hot days any more on hot days pressure use to drop right down .

Mr Hardware · 30-09-2009, 10:55 PM

once again blueoval is on the mark. Nulon is good stuff!

WiggyMK2 · 01-10-2009, 08:44 PM

i am leaning towards 15w40 at the moment. The motor has done 240 000 ks and it has 20w50 in it at the moment. I get a bad lifter noise at idle when cold which must be due to the oil being too thick when cold. So its a toss up between 10w40 or 15w40

blueoval · 01-10-2009, 11:04 PM

There isnt a lot of difference between 10 and 15w mate. As summer is approaching, Go the 15. When winter sets in, got the 10. Thats what I will be doing.