Jump to content
SAU Community

Recommended Posts

Hi there. My skyline has low oil pressure at warm idle according to the factory gauge. Only a few mm above zero. As soon as you take off it rises pretty quickly to around the 2 or 4 mark. When I got it it had 10W 30 oil in it. I now have 10w 40 in it with a genuine filter. Maybe now go to 15w 50.?

I searched and have heard this may be a gauge problem. I can't hear any clanking or signs of poor lubrication

When I got the car UAS checked it out pretty thoroughly.

Thanks

Link to comment
https://www.sau.com.au/forums/topic/57776-oil-pressure-at-idle-rb25det/
Share on other sites

Hi there.  My skyline has low oil pressure at warm idle according to the factory gauge.  Only a few mm above zero.  As soon as you take off it rises pretty quickly to around the 2 or 4 mark.  When I got it it had 10W 30 oil in it.  I now have 10w 40 in it with a genuine filter.  Maybe now go to 15w 50.?

I searched and have heard this may be a gauge problem.  I can't hear any clanking or signs of poor lubrication

When I got the car UAS checked it out pretty thoroughly.

Thanks

Hi there, what does it read at cold idle ?, i think your right about it being a gauge problem, whats your oil level like ?. it would be good to get a aftermarket one hooked up to check, i dont think there would be any need to go to 15w50, i run mobil 1 5w40 with a nissan filter and my oil pressure always hangs around 4 kg/cm at warm idle.

( pain in the ass getting a gauge though hey )

Thanks mate - good idea. It cold idles about the 4-6 mark. I'll have to check. But oil pressure is pretty high till about 5 minutes doen the road. I'm getting a wheel alignment soon so might see if the mechanic has a gauge to hook up to check. WHat could possibly be wrong, oil pump?

Thanks again

warm idle should be about 2

if you know someone with the same car swap the oil pressure sender and see if it helps. its easy to swap over.

yeah good idea, and ur right about the warm idle oil pressure i wasnt payin enough attention.

the pressure readings your getting seem uniformly low by about 2kg/cm so that might be a good sign that its just a telemetry type prob

  • 2 weeks later...

Right...

Is the oil pressure light run from another pressure sender/switch.

So you think I would hear valvetrain noise if the pressure was this low? On a cold start if the car has sat there for a day or 2 the oil light will come on for about 1 second after cranking then go off. I've never seen the oil light come on during driving/idling.

you would definately hear valvetrain noise if it was just above zero. The Skylines have very small tolerances and it becomes very obvious when you have no oil pressure.

I got an aftermarket guage and warm idle mine sits between 15 and 20 PSI

cold idle about 55 PSI. The genuine dash unit is very broad in its reading.

i have had a problem with my oil pressure sender for awhile.. sometimes watching it doing 100k's then the gauge says about 1 on the stock gauge. after calming down from freaking out i tapped the sender with the wheel nut undoer and it free'd it up aor something because everytime i do that it shows 2 on the stock gauge at idle.

its porbably just your sender playing funny buggers. also i am using HPR 15 which is a

10w - 60 oil with a purolater ( *spelling ) oil filter.

When I bought my R32 I was alarmed to see the oil pressure gauge just above Zero at idle.

I was even more worried when I was cruising at 100ks and put my foot down and the needle dropped to zero.

I took the car straight around to my mechanic. He put his master gauge on it and said the oil pressure was perfect so he ordered a new sender. Cost me over $ 200 but oil pressure has read spot on ever since.

  • 16 years later...
On 16/12/2004 at 2:10 AM, The Dan said:

you would definately hear valvetrain noise if it was just above zero. The Skylines have very small tolerances and it becomes very obvious when you have no oil pressure.

I got an aftermarket guage and warm idle mine sits between 15 and 20 PSI

cold idle about 55 PSI. The genuine dash unit is very broad in its reading.

Just answering from in the future by a few years, the oil pressure on my RB27 that I've freshly built with factory pump with extended crank collar sits about 90-105psi cold and 20psi when hot. Engines running on 15w-40 Semi Synthetic Castrol GTX oil 

8 hours ago, MoMnDadGTR said:

should be around 100psi when cold start with thicker oil yup. something wierd going on id be trying and testing like crazy at this point.

He said he has a factory oil pump. Please go back and read your factory manual.

RB26 Oil pressure at idle is 1.5bar or 21psi. His oil pressure is fine at idle.

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

    • You're not the first person that's said that about this car lol. A Touring wagon GT in Spark yellow mica would be the dog's danglies 😆 I will keep an eye out for a future purchase for sure. The seats are almost like the OEM Recaros... electric adjustment for fore/aft and tilt movements except reclining.   
    • Yes!! I love these! It's a shame its not the wagon though!   Thank everything that's holy that it doesn't have the interior of the Aussie delivered ones. Those seats are so much nicer.  
    • I'm both sorry and thankful that you do that. 
    • 2001 BE5D Subaru Legacy B4 RSK (3rd gen) EJ208 (pink injector) Twin Turbo 280PS 5-speed manual Full time 4WD "RSK" grade which means all of the above LQC option which means stock rear spoiler  I got it primarily to export to someone outside Japan who was interested. These BE5 Legacy B4 RSKs are going through a bit of a resurgence right know in Japan as they are one of the few cars from the "turbo, manual, RWD/4WD, 280hp gentleman's agreement era" cars that don't require stupid money to purchase. Which for some people might be a good opportunity to get as a base for restoration. If I can't find anyone to purchase it I will certainly be doing that myself over the long term. Why? Because it's properly fast in stock form, handles well enough for a GT sedan, there's still enough aftermarket and (if you can wait a while) genuine part support to make it a restoration candidate (<-- that will only get worse over time so it's a case of do it now or choose get a BL5 4th Gen). Mechanically it's fine, has only 89,200kms on the odometer. The problem with this car is that the body and exterior trims are weathered from at least the last 10 years being parked outdoors. I'm the 3rd owner, the first owner was the one that had it for 14 years and barely drove it, had a low-speed front impact (which didn't damage anything behind the radiator support) and got it fixed and sold it. The 2nd owner put most of the kms on it and parked it outside for the last 10 years, hence the door rubbers have seen better days but if you overlook those cosmetic details, it presents pretty nicely. There is some minor rust on the LH rear wheel arch which I'll have looked at too at some stage.  Also as you'd expect from a car this age, the clear top coat is gone, leaving a satin finish on the roof.  Mechanically it's fine (as you would expect from a car with less than 100K kms) but the steering does feel slightly vague around the centre position at higher speeds. So first on the list is to get the steering rack bushes looked at. There's also the Lock button on the remote which doesn't work, but the Open button does.... it means that the anti-theft system thinks it's always open? It seems like if you open the car and don't start the engine within 3 mins or so the anti-theft kicks in again without any beeps or signals. So if you got to start it after that, it won't. You have to push the open button again. That's how I understand it anyway. Just a small irritation but not a big problem to sort out. There's only one mod, the Wangan SPL muffler. Just a tad louder than stock. It's a really good mod for those who don't want to wake the neighbours but still want to hear a more prominent unequal length header EJ20 sound. Anyway I hope to get all those things done eventually, that is unless someone wanted to import it to their country from Japan (where I live). I'm open for negotiations as I really would like a Skyline... but this will definitely suffice in the meantime 🙂 *Disclaimer: This is how I picked it up from the dealer, minus the stuff on the back seat. I haven't cleaned the engine bay or done a thorough exterior clean, aside from spray painting the wipers. 
    • Wow, even with the Audi logo centre caps. I love OEM wheel mismatches. 
×
×
  • Create New...