Jump to content
SAU Community

Recommended Posts

LOL so hey can anyone provide sum info on royal purple for skylines??.. or is it like a super hard thing to get outa people :P

You know, i can get better wear reading with head and shoulder shampoo then all these oil tested. The chorine in there are a very good extreme pressure additives, it just that when you include it in your engine oil combine with moisture, you will form hydrochloride acid.
This article from StreetCommodore is very misleading, this Timken test are only good for grease, not oil. The editor has admitted the test is flawed and not representatives of actual engine condition.

StreetCommodore reply:

http://www.streetforce.com.au/news/01_oils_aint_oils.php

I concur. THis has been covered many times. I dont put faith in what someone said when they have no credability.

Hey guys,

been reading the first & last few pages...

I've come to the conclusion that I should go for the mobil 1 0w40 & buy about 5 litres for my car

I have an R34 GT-T with a turbo back exhaust, pod and 60,000K's

Is this a good choice? Still new to the whole D.I.Y service thing

Any info is greatly appreciated guys :rolleyes:

Hey guys,

been reading the first & last few pages...

I've come to the conclusion that I should go for the mobil 1 0w40 & buy about 5 litres for my car

I have an R34 GT-T with a turbo back exhaust, pod and 60,000K's

Is this a good choice? Still new to the whole D.I.Y service thing

Any info is greatly appreciated guys :rolleyes:

personally i 'think' the zero wt oils are too light, they recomend from factory 7.5wt... keep in mind our cars are round the 10yr mark so seals do tend to give a little, i would think the 10-30 mobil one would be overall safer.. it might take a little longer to warmup than the zero but... meh

Some castrol and Penrite facts;

The name comes from Castor oil which is ok, they then turned their hand to esters.... and failed giving synthetics thier bad reputation early on in the piece.. they no longer use ester... it is left to oil professionals.

did you know that castrol/Penrite Sin fully synthetics are actually only partial synthetics? the only full synthetics in australia have to say 100% synthetic on the bottle.... stoopid loop hole in consumer law.

Also to achieve a wide spread of 10-60 (penrite too) you need to add alot of additives these additives are not lubricous therefore actually reduce and dilute the amount of lubricant in the oil....

Some castrol and Penrite facts;

The name comes from Castor oil which is ok, they then turned their hand to esters.... and failed giving synthetics thier bad reputation early on in the piece.. they no longer use ester... it is left to oil professionals.

did you know that castrol/Penrite Sin fully synthetics are actually only partial synthetics? the only full synthetics in australia have to say 100% synthetic on the bottle.... stoopid loop hole in consumer law.

Also to achieve a wide spread of 10-60 (penrite too) you need to add alot of additives these additives are not lubricous therefore actually reduce and dilute the amount of lubricant in the oil....

Where do u get that info from?

Where do u get that info from?

hehe dont believe me? walk into repco autobarn or supercheap and make a list of all the oils which say 100% synthetic.... you will be suprised you will find 3 or 4 the rest are marketing hype.... you are buying the name or slogan not the oil.

MOBIL 1

MOTUL

NULON (crap though)

REDLINE

Of course there are other boutique brands like AMSOIL etc but they are not available at most outlets.

(URAS @ 13 Jun 2007, 02:04 PM) *

Some castrol and Penrite facts;

The name comes from Castor oil which is ok, they then turned their hand to esters.... and failed giving synthetics thier bad reputation early on in the piece.. they no longer use ester... it is left to oil professionals.

did you know that castrol/Penrite Sin fully synthetics are actually only partial synthetics? the only full synthetics in australia have to say 100% synthetic on the bottle.... stoopid loop hole in consumer law.

Also to achieve a wide spread of 10-60 (penrite too) you need to add alot of additives these additives are not lubricous therefore actually reduce and dilute the amount of lubricant in the oil....

You got to be joking.

Edited by Trex101
hehe dont believe me? walk into repco autobarn or supercheap and make a list of all the oils which say 100% synthetic.... you will be suprised you will find 3 or 4 the rest are marketing hype.... you are buying the name or slogan not the oil.

MOBIL 1

MOTUL

NULON (crap though)

REDLINE

Of course there are other boutique brands like AMSOIL etc but they are not available at most outlets.

Trex you seem to know your stuff about oils, is this true?

The other thing, even if Castrol is not 100% synth, I doubt it matters much since most people change their oils 5000-7000 KMs.

How do you define 100% Synthetic? Technically, engine oil consist of 70-80% base oil + 20-30% additives carrier fluid. The oil can be call a Fully Synthetic once the base fluid are 100% group III grade & above. The formulation of modern oil is very complex and can't be judge base purely on base fluid (but of course a group IV or V fluid will be more value than group III). A well formulated oil got to have good base fluid couple with strong anti-wear additives package, one can't just work without the other.

Group I - mineral

Group II/II+ - hydrocrak (VI below 120)

Group III - hydrocrack (VI above 120, mineral derive "Fake Synthetic")

Group IV - polyalphaolefin (man made Synthetic)

Group V - Ester & other un-group fluid (Ester or Polyolester, super high grade Synthetic, good for aircraft jet engine).

Well, to answer your question. In my opinion

MOBIL 1 --- are using group IV base fluid aka Fully Synthetic

MOTUL --- depends on type, the 300V are using group V ester base, race spec fully synthetic.

NULON (crap though) --- don't know about this brand but i doubt it good stuffs since they promote PTFE in their oil additives.

REDLINE - group V Polyolester + very overdose of anti-wear additives, race spec fully synthetic.

Edited by Trex101
How do you define 100% Synthetic? Technically, engine oil consist of 70-80% base oil + 20-30% additives carrier fluid. The oil can be call a Fully Synthetic once the base fluid are 100% group III grade & above. The formulation of modern oil is very complex and can't be judge base purely on base fluid (but of course a group IV or V fluid will be more value than group III). A well formulated oil got to have good base fluid couple with strong anti-wear additives package, one can't just work without the other.

Group I - mineral

Group II/II+ - hydrocrak (VI below 120)

Group III - hydrocrack (VI above 120, mineral derive "Fake Synthetic")

Group IV - polyalphaolefin (man made Synthetic)

Group V - Ester & other un-group fluid (Ester or Polyolester, super high grade Synthetic, good for aircraft jet engine).

Well, to answer your question. In my opinion

MOBIL 1 --- are using group IV base fluid aka Fully Synthetic

MOTUL --- depends on type, the 300V are using group V ester base, race spec fully synthetic.

NULON (crap though) --- don't know about this brand but i doubt it good stuffs since they promote PTFE in their oil additives.

REDLINE - group V Polyolester + very overdose of anti-wear additives, race spec fully synthetic.

So what group does my current oil Castrol Edge Sport 5w-30 belong to?

I'm sure its better then any oil that was around when your car was made.

Good point.

I guess Im just being cynical.

I first was using Shell Helix Ultra, got told its not that good. Also Ferrari endorses it quiet a bit and their engines are prone to rebuilding often... might have more to do that they dont get driven that much but still.

Then I moved onto Castrol Edge Sport (improved R formula)... I want to stick with it as its rather good value and prior Ive only read good things about Castrol.

I dont want to really pay above 70 bucks for 5 litres of engine oil since my car never sees the track or hard motoring.

the castrol is a cheap oil. group III base. if you want a good oil you have to pay more for it. it's that simple. the castrol you pay for marketing, motorsport involvement etc, and a bit of your money goes to developing oil, but it's still a cheap oil, and in my view poor value. but again its' a simple equation. good oil costs more than worse oil.

personally I think if you care about your engine and like to give it the old spanking then a IV or a V is the go. I use motul chrono 300V. costs a lot, but to me it's worth every cent. oil is one of the most important ingredients to a happy car. in my mind it's right up there with tyres as the biggest thing people underspend on. I say you can never spend too much $$ on good tyres, or good oil.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Did this end up working? Did you take some pictures?
    • And finally, the front lower mount. It was doubly weird. Firstly, the lower mount is held in with a bracket that has 3 bolts (it also acts as the steering lock stop), and then a nut on the shock lower mount itself. So, remove the 3x 14mm head bolts , then the 17mm nut that holds the shock in. From there, you can't actually remove the shock from the lower mount bolt (took me a while to work that out....) Sadly I don't have a pic of the other side, but the swaybar mounts to the same bolt that holds the shock in. You need to push that swaybar mount/bolt back so the shock can be pulled out past the lower control arm.  In this pic you can see the bolt partly pushed back, but it had to go further than that to release the shock. Once the shock is out, putting the new one in is "reverse of disassembly". Put the top of the shock through at least one hole and put a nut on loosely to hold it in place. Put the lower end in place and push the swaybar mount / shock bolt back in place, then loosely attach the other 2 top nuts. Bolt the bracket back in place with the 14mm head bolts and finally put the nut onto the lower bolt. Done....you have new suspension on your v37!
    • And now to the front.  No pics of the 3 nuts holding the front struts on, they are easy to spot. Undo 2 and leave the closest one on loosely. Underneath we have to deal with the wiring again, but this time its worse because the plug is behind the guard liner. You'll have to decide how much of the guard liner to remove, I undid the lower liner's top, inside and lower clips, but didn't pull it full off the guard. Same issue undoing the plug as at the rear, you need to firmly push the release clip from below while equally firmly gripping the plug body and pulling it out of  the socket. I used my fancy electrical disconnect pliers to get in there There is also one clip for the wiring, unlike at the rear I could not get behind it so just had to lever it up and out.....not in great condition to re-use in future.
    • Onto the rear lower shock mount. It's worth starting with a decent degrease to remove 10+ years of road grime, and perhaps also spray a penetrating oil on the shock lower nut. Don't forget to include the shock wiring and plug in the clean.... Deal with the wiring first; you need to release 2 clips where the wiring goes into the bracket (use long nose pliers behind the bracket to compress the clip so you can reuse it), and the rubber mount slides out, then release the plug.  I found it very hard to unplug, from underneath you can compress the tab with a screwdriver or similar, and gently but firmly pull the plug out of the socket (regular pliers may help but don't put too much pressure on the plastic. The lower mount is straightforward, 17mm nut and you can pull the shock out. As I wasn't putting a standard shock back in, I gave the car side wiring socket a generous gob of dialectric grease to keep crap out in the future. Putting the new shock in is straightforward, feed it into at least 1 of the bolt holes at the top and reach around to put a nut on it to hold it up. Then put on the other 2 top nuts loosely and put the shock onto the lower mounting bolt (you may need to lift the hub a little if the new shock is shorter). Tighten the lower nut and 3 upper nuts and you are done. In my case the BC Racing shocks came assembled for the fronts, but the rears needed to re-use the factory strut tops. For that you need spring compressors to take the pressure off the top nut (they are compressed enough when the spring can move between the top and bottom spring seats. Then a 17mm ring spanner to undo the nut while using an 8mm open spanner to stop the shaft turning (or, if you are really lucky you might get it off with a rattle gun).
    • You will now be able to lift the parcel shelf trim enough to get to the shock cover bolts; if you need to full remove the parcel shelf trim for some reason you also remove the escutcheons around the rear seat release and you will have to unplug the high stop light wiring from the boot. Next up is removal of the bracket; 6 nuts and a bolt Good news, you've finally got to the strut top! Remove the dust cover and the 3 shock mount nuts (perhaps leave 1 on lightly for now....) Same on the other side, but easier now you've done it all before
×
×
  • Create New...