What kind of engine oil do you use?

[CNBLU]

Engine: Z20LET

Current oil: Nulon full syn 10w/40

Previous oil: Castrol Edge full syn 5w/30

Feeling: 5w/30 was too thin, have had no probs with 10w/40

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[SSS_Hoon]

also found 5w/30 too thin and am also now running 10w/40

Also change my oil every 5000-7500k depending on how long it sits for between drives.

u think mobil 1 is exxy try buying Royal Purple, i also have Royal Purple in the gearbox.

Was going to try NEO but so far find Royal Purple fine so far.

SSS_Hoon

[Z20LET]

Engine: Z20LET

Current Oil: Nulon full syn 15W-50 street & track

Previous Oil: Factory Holden crap

Feeling: Can't notice much difference now as I've done about 6 changes now with the Nulon but definitely alot smoother feel over the factory stuff.

[YeshSRITURBO]

Astra sri turbo ah

First service: Pennzoil Platinum 5w30 full synthetic

[JohnBu]

Engine: SRi Turbo Z20LET 132,000km

Current oil: Shell Helix Ultra (5W40 from memory) fully^ synthetic

Previous oils in order:
- Holden Shell Helix (not ultra) semi-synthetic
- Mobil 2000x2 10w40 semi-synthetic
- Mobil Syn S 10w40 semi-synthetic(no longer in production- 2000x2 replaces it)
- Valvoline XLD Engine Armour 15w40 semi-synthetic

Engine oil & OEM filter replaced ~7,500km since 30,000km.

All the oils i've used seems to be exactly the same to me. No perceivable difference in start up, noise, rattling, revving, performance etc. Engine has never used oil to require a top up.

Will use Mobil 2000x2 for the next 3 oil changes as I have 2 and a bit 5L litre bottles left. I hate having 3 or 4 different leftover brands of oil laying around. I would mix the leftover together if I had an old car

In future will buy Mobil 2000x2 or Valvoline XLD Engine Armour, depending what is on special at the time.

As I don't do track work, I personally think buying the correct grade of oil and changing frequently means that fully synthetic will not benefit me.

^ claims to be synthetic, but as I understand it very few oils are really are fully synthetic.

[lithium]

Engine: Z18XE

Current Oil: Nulon 10w-40 Synthetic

Previous Oil: Shell 5w-40 Synthetic

Feeling: you could hear some tapping from the valves with the 5w on startup in winter - switched to 10w and it is gone. Nulon is the only reasonably priced brand i've found that produces synthetic 10w-40?

[HappySlapper82]

Engine: Z18XE

Current Oil: Nulon 10w-40 Synthetic

Previous Oil: Shell 5w-40 Synthetic

Feeling: you could hear some tapping from the valves with the 5w on startup in winter - switched to 10w and it is gone. Nulon is the only reasonably priced brand i've found that produces synthetic 10w-40?

This one? I have heard awesome things about this oil. I think I will try it out

[chrissn89]

g: Nulon is the only reasonably priced brand i've found that produces synthetic 10w-40?

Fuchs have a synthetic 10w-40, its what ive always used in my Z20let, isnt overly expensive i dont think.

Fuchs Titan Super GTO SAE 10w-40

[lithium]

yep, the Nulon in the gold bottle is the one i use. i lol at the '32% less friction' claim every single time i look at the bottle the reason i use it is because its synthetic and 10w/40 is the factory recommended viscosity for my engine. no complaints thus far!

the Fuchs looks interesting, i might try to track down a bottle for the next change. where do you buy it? i've never seen Fuchs in a Supercrap and Autodarn

[chrissn89]

the Fuchs looks interesting, i might try to track down a bottle for the next change. where do you buy it? i've never seen Fuchs in a Supercrap and Autodarn

I get it from my local mechanics in a 5L bottle.