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The Goods On Oils

PHaT MR30

By PHaT MR30,
in General Maintenance

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scotty nm35
scotty nm35

Any brand will work fine, some just last longer than others. I still believe you are better off using a cheaper ($50) oil and changing it every 5k rather than spending twice that and trying to strin

Kinks
Kinks

Royal Purple 10W-50, warm it between your hands for a few seconds then apply it to the area at the base of your shaft between your balls ..about as valid as any other opinion in this thread

scotty nm35
scotty nm35

F1 still use monograde 10 weight oils, hence the need to get the engine warm before starting it. Nothing stone age about it...

Posted Images

me_larr Community Regular

me_larr

Posted
Posted

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

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 Mentor

MrRx7s3

Posted
Posted

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 Grand Master

R.3.2.G.T.R

Posted
Posted

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
niZmO_Man Grand Master

niZmO_Man

Posted
Posted

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 Grand Master

niZmO_Man

Posted
Posted

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.

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Rolls Grand Master

Rolls

Posted
Posted (edited)

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 by Rolls
R.3.2.G.T.R Grand Master

R.3.2.G.T.R

Posted
Posted

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

Got a Pulsar Grand Master

Got a Pulsar

Posted
Posted

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 Veteran

Missileman

Posted
Posted

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 Experienced

ZRBE

Posted
Posted

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..

niZmO_Man Grand Master

niZmO_Man

Posted
Posted

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.

ZRBE Experienced

ZRBE

Posted
Posted
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..

Nii San Explorer

Nii San

Posted
Posted (edited)

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 by Nii San

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