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Just after a clarification more than anything,

I am running a Hi Energy style winged sump on my RB25/30DET and it has come the time to do my first 5000km oil change.

Now, I assume that since the pickup is in the same position as on the RB30 SOHC, the oil level (as per the dipstick) will still be accurate? I should fill the engine with oil as per normal upto the full line?

How I understand that the design of these sumps work is that they simply have the same profile of the OEM sump upto the oil pickup but are slightly deeper and wider overall than the OEM RB30 sump. Its this extra width and depth which gives you the higher capacity of oil.

Edited by R32Abuser

Oil dipsticks never touch the bottom of the oil sump, usually have to put 3l in before it will even register on a stock sump. It will probably take 4-6l before it registers on your setup

Yeh as I expected. Since the pickup location has not changed, and the dipstick is as per stock, you fill the thing like normal.

Just needed a confirmation.

Just need to find somewhere which sells Motul 8100 Excess 5W-40 for cheap. Too bad I have to get 2 bottles worth... :angry:

Dobz - Yeah found it for $59 a bottle at Repco on clearance.

NYTSKY - IIRC the sump I have is exactly the same as the Hi energy racing sump for the RB30 which are gated and baffled around the pick-up... not just an enlarged sump. Also comparing the items side by side, majority of the additional capacity is gained in increasing the sumps width, not depth. Therefore there would be no massive benefit in extending the pick-up as the oil starvation issue is being reduced via the gating and baffling.

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