The Goods On Oils

[scotty nm35]

Penrite doesn't stain your concrete purple either if you drop some.

[me_larr]

^The purple doesn't last long. Turns brown as it oxidizes

Have used Nulon 10w-40, Motul 8100 X-Max 10w-40, Royal Purple Synerlec SL, API and HPS 10w-40 and now Penrite Racing 10w-40.

All these oils we used for 2 or more oil changes cos I want to see if there were any benefits.

No discernible performance difference. Engine ran the same.

The only thing I noticed was that the Nulon at 5000km became a lot thicker whereas the other oils stay nice and fluid at cold temperatures.

The old adage "you do get what you pay for" doesn't always apply to all things especially engine oil but in this instance, it was enough for me to move away from the product.

[MrRx7s3]

Look to be honest Royal Purple is the best oil I have ever used so far, it craps over Motul IMO, engine ran so much smoother, quieter.

Only reason why I am changing is due to the price, it was ok before the price hike at $90 a bottle, then it went up to $110 and now almost $130 and for something that you're just gonna dump every 5000kms average 6 months its a waste.

[R.3.2.G.T.R]

Look to be honest Royal Purple is the best oil I have ever used so far, it craps over Motul IMO, engine ran so much smoother, quieter.

Only reason why I am changing is due to the price, it was ok before the price hike at $90 a bottle, then it went up to $110 and now almost $130 and for something that you're just gonna dump every 5000kms average 6 months its a waste.

Couldn't agree more, royal purple has been my choice of oil for over 4yrs, but I would like to give hpr15 a shot

[ZRBE]

Okay, oil done... My oil pressure is now lower than normal??

It used to sit just under 4 in stock 32 gtst gauge..

Now sits under 2...

And both drop when car gets warmer obviously..

Edited January 14, 2014 by ZRBE

[niZmO_Man]

Couldn't agree more, royal purple has been my choice of oil for over 4yrs, but I would like to give hpr15 a shot

Err, HPR15 is one level cheaper than Royal Purple. If you want an equivalent, get one from the Racing (formerly SIN) range.

[niZmO_Man]

Okay, oil done... My oil pressure is now lower than normal?? It used to sit just under 4 in stock 32 gtst gauge.. Now sits under 2... And both drop when car gets warmer obviously..

Probably the oil pressure switch thing. My car does the same sometimes.

[Rolls]

Confused if I should go with Penrite Racing 10 10-40w or Penrite Racing 15 15-50w, Car has 81000kms on the clock with just the first stage mods, intake, front mount, exhaust, 12psi, power fc 211rwkw, thanks.

Depends on what you do with it, if you daily drive it 10-40 will be great, if you flog it for hours or track it go the 15-50, in this 40c weather the 50 would be better even for daily driving but it doesn't last more than a month or so so 40 I would still put in.

Edited January 15, 2014 by Rolls

[R.3.2.G.T.R]

Err, HPR15 is one level cheaper than Royal Purple. If you want an equivalent, get one from the Racing (formerly SIN) range.

shyte, meant RACING 15 15W-50, still getting used to their naming

[R.3.2.G.T.R]

Okay, oil done... My oil pressure is now lower than normal?? It used to sit just under 4 in stock 32 gtst gauge.. Now sits under 2... And both drop when car gets warmer obviously..

i had this issue when i trialled mobil1 few years back, engine was bit noiser on startup as well iirc, switched back to royal purple 10w-40 and all was good again, dont recall which weight mobil1 i tested though

[PN-Mad]

I use 5-40 on the track, and flog it. Never even thought about putting some 60 weight shit in.

That's the beauty of a functional oil cooler....

Temps never above 105 degrees.

[Got a Pulsar]

Quick question.

Got a mate (R33 GTS-t) who needs an oil change, he has a spare bottle of 0w40 in the garage.

is this going to cause any damage if he puts it in knowing it's getting up around 38 degrees in Canberra?

[Missileman]

Okay, oil done... My oil pressure is now lower than normal?? It used to sit just under 4 in stock 32 gtst gauge.. Now sits under 2... And both drop when car gets warmer obviously..

In the manual it says to check oil pressure by removing the sender unit and to connect an after-market pressure gauge, and test on a warm engine...

RB20DET

@ 600 rpm pressure should be 1 kg/cm2

@2000 rpm pressure should be 3 kg/cm2

@6000 rpm pressure should be 4 kg/cm2

and the do say these are approximate readings.

[ZRBE]

In the manual it says to check oil pressure by removing the sender unit and to connect an after-market pressure gauge, and test on a warm engine...

RB20DET

@ 600 rpm pressure should be 1 kg/cm2

@2000 rpm pressure should be 3 kg/cm2

@6000 rpm pressure should be 4 kg/cm2

and the do say these are approximate readings.

Uhhh, okay.

Well I don't know where the sensor unit is..

And I have a Defi oil pressure gauge, not installed though..

My oil pressure doesn't change at all with RPM?

Only drops once and that's when the car is warmed up..

[Missileman]

Well if you want peace of mind then you might just have to book it into a service centre to have it checked properly.

[niZmO_Man]

Quick question.

Got a mate (R33 GTS-t) who needs an oil change, he has a spare bottle of 0w40 in the garage.

is this going to cause any damage if he puts it in knowing it's getting up around 38 degrees in Canberra?

Nope it's fine. Only issue I can see is that there might be light oil burning when cold, if the motor is worn.

[Got a Pulsar]

Nope it's fine. Only issue I can see is that there might be light oil burning when cold, if the motor is worn.

Thanks mate.

[ZRBE]

Well if you want peace of mind then you might just have to book it into a service centre to have it checked properly.

Yeah, looks like I might have to.. Bleh

I hate paying labour costs

Plus find all other things wrong with it lol..

[Missileman]

If they take anymore than 1/2 an hour your getting ripped, more like a 10 min job if they are any good. Alternately hook up your Defi gauge and see what happens, it did come with its own sender unit didn't it?

[Nii San]

hey guys just wondering what oil weight you would recommend for a fully built rb25 its oil change time and i was gonna go with redline 15-40w i have been using castrol edge titanium 10w60 but someone suggested this isnt a good weight for goldcoast during summer? i know this has probably been covered in the previous 152 pages but i dont have time to trawl and ive done a few searches but not really answered my question. so i thought i would get some opinions

anyways cheers for any replies

Edit: i should add it is daily driven (not very far a lazy 10 min drive) and if it were ever to go to a trackday i would change to something recommended for the track.

Edited January 15, 2014 by Nii San