What engine oil

[P3krm]

What engine oil are you using I have got royal purple 10w30 in Monaro 5.7 with 130'000 miles and was wandering what else was recommended

[Dave3166]

VXR8, Mobil 1.

Not a daily driver either.

[Mud_]

I use Mobil 1. I looked into higher zinc oils a bit, but apparently ethanol in fuel kills off the zinc content...pinch of salt and all that, but can't go far wrong with Mobil 1.

[altoplanohombre]

P3krm said:

What engine oil are you using I have got royal purple 10w30 in Monaro 5.7 with 130'000 miles and was wandering what else was recommended

Why change .....just renew.

105k miles on my Monaro and all the oils are Royal Purple.

[Glyn84]

143k on a Monaro, the past 80k being on Shell Helix Ultra 5w40.

[P3krm]

Was just wondering if a thicker oil like a 40 or even 50 would be beneficial to a higher miles engine

[OverSteery]

Choosing engine oil is always an interesting topic.

I took some opinions and was persuaded that 5W-40 was the best choice for my supercharged LS1. I was advised against 50 as this might reduce flow.

Please note I don't pretend to be an expert in this matter

[Mud_]

OverSteery said:

Choosing engine oil is always an interesting topic.

I took some opinions and was persuaded that 5W-40 was the best choice for my supercharged LS1. I was advised against 50 as this might reduce flow.

Please note I don't pretend to be an expert in this matter

Indeed, bobistheoilguy.com is a good resource and the closest you'll get to consensus.

[SteveMJ]

P3krm said:

Was just wondering if a thicker oil like a 40 or even 50 would be beneficial to a higher miles engine

As a non-expert in the field; I would say that (based on my 80k miles in a VXR8 daily drive) most of the time the engine has a low level of stress. 2000 rpm at light load only a small amount of time at higher revs and / or under load. In my case I almost certainly never load or rev the engine until the water and the oil is hot.

So 80k miles or 130k miles for you may not represent much engine wear - just run-in :-)

Steve

[P3krm]

I just looked at the spare bottle in the boot and it was 10 w40 Royal purple last time so ordered that from monkfish it's what they recommend so best stick with it thanks for all the input guys

[DRC72]

I use 5w 40

[Glyn84]

For what it's worth, the Vauxhall manual says

Engine oils
For engine lubrication, we recommend in
particular Vauxhall brand oils
ACEA A3/B3: SAE 10W-40:
– or –
ACEA A3/B3: SAE 5W-40:
for petrol engines

I presume there must be a reason they write this where the oil cap itself says 10w30 (which you can't seem to get in the UK easily).

[snowwolf]

A standard engine will be more than happy on Mobil 2000 and a good filter.