Reccomend me some oil?

ThoR_ · 03-10-2007, 08:19 PM

Hey guys

Need to do a change on my AU2 XR8 Auto....has 100,000kms............Anyone wanna reccomend me some oil and what thickness i have 20-50 laying around but i would say that to thick.

Cheers

matt9889 · 03-10-2007, 08:41 PM

10w-30's recommended for the i6's but i think thats for fuel economy not the wallet, think u'd be safe with a good quality 20w50 (unless u live in a really cold place and dont warm ur engine). autobarn had castrol magnatec on special for $20 (sell it at $44 were i work) so that was cheap as chips. thats high quality 10w-40 i think. penzoil also makes a decent 10w30 but at the moment im using shell eco10 which is supposed to increase fuel economy somhow?

Blonk · 03-10-2007, 08:42 PM

Castrol edge is the best I have used, get the heviest stuff

ThoR_ · 03-10-2007, 09:24 PM

I wanna stick with Pennzoil i swear by it. Just dunno whether to get a 20-50 or a 10-30 or what. And need alot of peoples advice because i dont wanna use the wrong one! Im not a fan of Castrol Magnatec. Think ill be going Pennzoil or Penrite

Also whats your take on mineral, semi-synthetic and full synthetic? Is it alright to use a Mineral based oil. Being a igh performance motor i would say Mineral wouldnt be to good.

waggaclint · 03-10-2007, 10:22 PM

id use semi or fully synthetic both are good..as for grade depends on how many KM'S you car has done higher grade for more kms etc as for brand my opinion is mobil1 is the best and ya pay for it too..but most good brands are all good these days...Im a mechanic and we use valvoline at work & i use it in my car and my familys etc & im very happy with it for your car Valvoline Problend 15w40 would be the go....

sly · 03-10-2007, 10:54 PM

At 100,000k's your motor is barely run in. I still use 5W30 (per the filler cap) on my I6 with 320,000k's. The EFI Windsors are supposed to be good for 500,000k's. Stick with the recommended grade until it starts to use oil then go heavier. Tried 15W40 in mine once & it was flat until 3000rpm. You only need heavier oil once the rings &/or bores start to wear & oil leaks through.

JC · 03-10-2007, 11:57 PM

Penrite recommend HPR10.
http://www.penritedata.com/au/db/veh...192&x=239&y=16

Pennzoil Recommend PLATINUM 5W/40
http://www.pennzoil.com.au/lubematch/pz_lubematch.asp

Google works wonders.

ThoR_ · 04-10-2007, 12:20 AM

JC, got nothing nice to say off

JC · 04-10-2007, 12:30 AM

Quote:

Originally Posted by ThoR_

JC, got nothing nice to say off

What is your problem? I just gave you 2 links to recommended oils for an AU XR series 3 5.0. And commented that Google works wonders (which it does). You are a prize idiot.

ThoR_ · 04-10-2007, 12:34 AM

Yeh your saying, use google you idiot in other words.

JC · 04-10-2007, 12:37 AM

Quote:

Originally Posted by ThoR_

Yeh your saying, use google you idiot in other words.

If the shoe fits....

But that's not why. I would have recommended Penrite, but would have needed to look up the right spec oil anyway for an AU2/3 XR8. So I used google. The fact that you already had 2 oils in mind made the search easier, and if you knew the answer (about google), and you already had one or two preferred brands in mind, why didn't you use google? I'm pretty sure it gives the same answers in the West as it does over here, even if it is 2 or 3 hours behind.

ThoR_ · 04-10-2007, 12:38 AM

So 20-50 or a 10-30?

ThoR_ · 04-10-2007, 12:40 AM

Because i would rather ask other car enthusiasts what they use, and what weight they use

feebs · 04-10-2007, 12:43 AM

I think edge would be a bit thin (the synthetic type anyway).. use magnetec or a blend of edge/gtx3 .

JC · 04-10-2007, 12:44 AM

10/30 is recommended for the I6, the V8s need a 5W40 or 10W40. As others have said, your engine is barely run in, so the weight of oil as specified in your owners manual, or as recommended on the oil manufacturers sites is what I would go for. You could use 20W50 at a pinch, especially coming into summer, but I would play it safe and use the recommended viscosity, but as it's your car, it's entirely up to you. There's not much chance of it doing damage by using the 20W50, and there's really not much performance gain to be had from using mineral or synthetic oil, as long as you change it when it needs changing, and you use the viscosity as specified, or close to it (and 20W50 is close to 10W40 - but not in winter).

ThoR_ · 04-10-2007, 12:44 AM

Ive got alot of people telling me different weights....lol....

ThoR_ · 04-10-2007, 12:49 AM

Quote:

Originally Posted by JC

10/30 is recommended for the I6, the V8s need a 5W40 or 10W40. As others have said, your engine is barely run in, so the weight of oil as specified in your owners manual, or as recommended on the oil manufacturers sites is what I would go for. You could use 20W50 at a pinch, especially coming into summer, but I would play it safe and use the recommended viscosity, but as it's your car, it's entirely up to you. There's not much chance of it doing damage by using the 20W50, and there's really not much performance gain to be had from using mineral or synthetic oil, as long as you change it when it needs changing, and you use the viscosity as specified, or close to it (and 20W50 is close to 10W40 - but not in winter).

Would a 10w30 and a 10w40 be good all year round?

JC · 04-10-2007, 12:49 AM

Quote:

Originally Posted by ThoR_

Ive got alot of people telling me different weights....lol....

That's because the weight doesn't really matter too much (as long as it's close). After all, what's in the owner's manual is only a recommendation. In constantly colder conditions, you would want to use a thinner oil (say a 0W30), and constantly hot conditions you need a thicker oil like a 20W50 or 60 - for example, V8 supercars use something around the 70 mark. As long as what you use doesn't create any rattles on start-up or at high revs, then the oil is lubricating as it should, and if you change it every 7500km or so (ie keep it clean), then it only needs to be close to spec.

Our local Ford dealer use Magnatec 10W40 in I6s even though they are specified as 10W30.

JC · 04-10-2007, 12:52 AM

Quote:

Originally Posted by ThoR_

Would a 10w30 and a 10w40 be good all year round?

A 5 or 10W40 in the V8 would be ideal all year round. you could even do the odd top up as the oil level lowers using your supply of 20W50 without any detrimental effect.

Our 4.6 V8 Explorer specifies some weird oil like a 5W20, but then the owners manual stipulates that if that's not available, then a 10W30 or 0W30 can be used for top ups, and a 10W30 can be used for a full change. Oils ain't oils!!!

ronwest · 04-10-2007, 12:55 AM

Quote:

Originally Posted by ThoR_

Ive got alot of people telling me different weights....lol....

Yeah, you get that on discussion forums...

Why don't you listen to what JC says and then thank him for his time and effort.

You may also (if you have a brand in mind) email/phone their tech support and ask what they recommend for your car at it's present mileage.

I did that when I wanted to change my diff oil to synthetic. A couple of emails back and forth and I was satisfied with my choice.

ThoR_ · 04-10-2007, 12:55 AM

i dont even know what oil it has in it right now, does it matter if its got a 20w50 and i go and chuck in a 10w40-30?

JC · 04-10-2007, 12:59 AM

No it wouldn't matter. usually there's a sticker on the inside of the windscreen that mechanics put there to tell you when the next oil change should be - it should also have the brand/type of oil last used (well, my XR8 did, as I used to use HPR10, which comes with a sticker on the bottle for that very purpose).

FTe_XR8 · 04-10-2007, 01:17 AM

just chucked 10/40 in mine as its coming to summer and i think i use 5/30 in the winter months just a combo i thought of myself after reading up about the properties and stuff on oil, could be wrong but my car doesnt make any funny noises yet! also mines at 130000 so pretty similar k's and in perth.

and also i used an engine oil flush last oil change and it made a bit of sludge come out just some food for thought......

Casper · 04-10-2007, 07:49 AM

My head hurts.

sly · 04-10-2007, 09:57 AM

Quote:

Originally Posted by ThoR_

i dont even know what oil it has in it right now, does it matter if its got a 20w50 and i go and chuck in a 10w40-30?

Advice I got a long time ago was to use an engine oil flush when changing brands or weights of oil, to get the most possible of the old oil out. Suggest doing the same when you don't know what's in it. This will also help clean up any sludge that may be starting to build up.

sly · 04-10-2007, 09:58 AM

Quote:

Originally Posted by Casper

My head hurts.

Too much sludge perhaps? Better flush it out, VB is good for that LOL.

GK · 04-10-2007, 10:01 AM

A 10/40-50 will be more than fine. Use the brand you want and she'll be apples.

All the best with your deliberations!

GK

b2tf · 04-10-2007, 10:23 AM

Quote:

Originally Posted by ThoR_

JC, got nothing nice to say off

This is why I was really hoping you were joking when you said you bought an AU.

The value of my XR8 is copping it hard enough without idiots like you in one.

You asked for advice, JC and others have given it, and this is what you say.

:

Casper · 04-10-2007, 10:34 AM

Quote:

Originally Posted by sly

Too much sludge perhaps? Better flush it out, VB is good for that LOL.

Nah, not sludge. Just my "ridiculously inane" meter is pegging off the charts.

The Australian Institute for Mental Health warns that reading this thread will have a negative impact on your IQ!

sly · 04-10-2007, 12:50 PM

ROFL! Well.... you have to take the good with the bad, or was that "some days are diamonds, some days are stones" [/RIDICULOUSLY_INANE]