Thread: Best Oil for 3.9 V8s?

from memory any 20-50 will do.
I generally go penrite, if you want to splash out on the ol' gal, you go a semi-synthetic.
The cost of full synthetic puts me off

I think its more importnt to have regular changes

I used to use 20-50 but could only get Valvoline 15-40 in Carnarvon so used that.
I found the engine subjectively more perky on 15-40 and found it didn't use any more oil than the 1l per 5000km that it always did.

So I have used 15-40 for the last couple of years .
Read "Bob is the oil guy " and you will tend to use thinner oils.
Of course it depends on how old and tired the engine is but mine has done 208KK now and is fine.
Regards Philip A

Whatever 20/50 is going in Woolies , its usually actually a Gulf General blend , proved to just as good as any of the expensive stuff .Usually $15 for 4 litres in Woolies !! (That if you have a Woolies in Seth Efrica )

Seth Efrica has a Woollies, but they only sell clothing and food over here!

Shell Helix HX5 or Delo 400 will do the trick.

Midas, Makro, maybe even Pick&Pay.

Did your search take you here?
http://www.aulro.com/afvb/good-oil/

I use Penrite HPR 30 (20W-60) which is probably a bit thick for Auckland however the engine is full of leaks and looking through the oil filler hole, it's pretty sludged up. It's a v belt with 185 000 kms on the clock with no service history.

Penrite HPR 15 (15W-60) is a semi-synth which is prob best for better condition engines and serp engines.

The Penrite oils have high levels of ZDDP which is essential to prevent cam wear in RV8s.

I buy a 10l trademens pack.
from super cheep type dealers.
this was recomended for the leyland and rovers and is the only oil i could find that was recomended in the falcon owners manual.

Valvoline Trade Pack Engine Oil - 20W-50, 10 Litre - Supercheap Auto Australia

I havnt had to top up between changes.my other car is a BFII Egas wagon and it uses 6.5l per service so i have to buy 20l at a time.

I havnt asked if i ca buy it in bulk at better rates from other agents but at $4L not worth chasing.