Thread: Limited choice of oil.

if the only choices are nulon and penrite

Nulon Hi-Tech Fast Flowing Synthetic Engine Oil - 10W-40
Penrite HPR 5 Engine Oil - 5W-40

both are base III oils, a hydrocracked oil. both are called synthetic here in aust. (in europe it would be called a mineral oil due to legalities)

i won't comment about using the diesel oil. 20w won't provide lubrication at start up and 60 won't provide correct lubrication at operating temp imho


nothing wrong with ryco oil filters imho.

I only ever use Penrite oil.
A few years ago I asked Penrite about using the diesel oil in my V8 ?
They said it would be fine and no problems.
I change the oil about every 7 or 8 thou. It always comes out spotless with little colour change.
I just use a Ryco filter.
It also doesn't use any oil between changes.
It marks its territory a little but not with engine oil.

Thanks. There are so many posts and info on the subject out there that it gets quite hard to process. I am restricted by budget in fact, $100 in fact. I limited the choice to these two brands as I can afford ten litres of it, an oil pan and a wrench, and they're australian. But I am not against any other that might fit the criteria( $80/10L).

Originally Posted by ludovic

$100 in fact.

both the oils ive listed ive picked up for $50 on special, normal price $60.

you need 6.7l for an oil change. why not buy a 5L and 2x 1L bottle. (instead of 2x 5L) will be cheaper then $100.

Originally Posted by olbod

It always comes out spotless with little colour change.

alternative line of thinking: if the engine is dirty (which all engines are), and the oil comes out clean, it means it not picking up the dirt, etc.

just a thought.

Yes, you might be right. I need to go have a look around again. But when i was shopping around in automotive stores, i don't know if it is inventory season, they all seemed badly assorted. You would find a 5l but not two 1l of the same reference, or vice versa. Just thought it made sense getting 10l and have some spared (yeah, she drips a little...).

Originally Posted by ludovic

(yeah, she drips a little...).

if you need 6.7l and get 7l, you'll have 300ml left over.

im not sure how many drips are in 300ml, but im guessing a few

Castrol Magnatec 10W-40 is all I ever used in my V8 Discos, reasonably priced and good quality, Regards Frank.