The Goods On Oils

[PN-Mad]

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 15w60 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

Ask the engine builder.

They put it together and know the tolerances.

[jjman]

iv always used the Castrol edge titanium 10w40 in W.A. summers and seemed to do the trick just fine.

Not sure about your built engine tolerances tho so the recommendation to check with the builder is a good one.

Nonetheless, as the motor was recommended stock to run 7.5W30, I think 10w40 is a good number for these older motors and warmer conditions. Also a fully syn is far beyond the requirements the guidelines note.

[gtr jet]

I've always used Castrol Edge Titanium 10w60 and it's on special now at Repco for $59 for who ever else uses it.

I snapped up a box while I had the chance.

[dan.1337]

I've always used Castrol Edge Titanium 10w60 and it's on special now at Repco for $59 for who ever else uses it.

I snapped up a box while I had the chance.

Do you track with that oil too? What sort of temps are you getting at track if you do?

[gtr jet]

Yeah it's a track only car for the moment but my oil temp gauge isn't connected so I'm not too sure of the temps.

I run a cooler and haven't had any drama's in the last 18 months of racing.

[MrRx7s3]

I hate this process haha lol, so boring waiting for all the oil to drain out lol, would it hurt to put some compressed air through the oil cap to push the oil down a little.

Edited January 17, 2014 by MrRx7s3

[Missileman]

I usually let mine drain over night.

[MrRx7s3]

Unfortunately I don't have either the time or the patience for that.

[Missileman]

Surely you must sleep???

[MrRx7s3]

That's the patience part haha, and I gotta get up at 4 and drive to work so I wouldn't really be bothered doing that at 4am, surely something would go wrong lol.

[Got a Pulsar]

Unfortunately I don't have either the time or the patience for that.

Change Sparkplugs, oil filter, and clean air filter while you wait.

[MrRx7s3]

Well I've put the Penrite Racing 10 10w-40, I'm impressed, engine is as smooth if not smoother than the Royal Purple, oil pressure is better than with the Royal Purple, overall so far with a short drive I'm happy :-D.

[MrRx7s3]

Change Sparkplugs, oil filter, and clean air filter while you wait.

Change Sparkplugs, oil filter, and clean air filter while you wait.

All done.

[PN-Mad]

I hate this process haha lol, so boring waiting for all the oil to drain out lol, would it hurt to put some compressed air through the oil cap to push the oil down a little.

It wouldn't hurt, it would just go out your intake....

Drink beer while it drains. Perfect excuse.

[SiR_RB]

Just dumped my penrite racing 10 tenths racing 15 15w-50

After about 4500kms of daily driving, came out perfect no water found in the oil

Got more penrite 15w-50 and chucked it in, works a treat for me !

[Adz2332]

im using in my GTR running 387kws and e85 Bulon 10w 40

Its an SN rated fully synthetic oil, especially for e10 e85 cars.

Never had a problem. used on track to

[Badgaz]

Anybody using Total lubricants quartz 7000? 10w40 i'm about to try it.

[HotRodderJoe]

Just put in Shell Helix Ultra 5w-40. Best oil I've used for the RB25DET.

Smoother quieter idle, very smooth running and revving.

Had Penrite HPR5 5w-40 in there and that was not bad but it seems better with the Shell.

Before that had Valvoline Synpower 5w-40 which made the engine run very smoothly but the Shell seems slightly better.

[omnigear]

Most of the post is what they feel/hear/see/smell and nothing factual .

[Got a Pulsar]

Fair point.

The Nulons I use also taste yummy.