scoobyken

Anyone knows what the correct oil temperature should be when ordinary driving and when your giving it some boost?? Since I've had the fmic on the oil temp is hitting around 95oc when giving boost or stuck in traffic? Pls help! Cheers

L.J.F

iTrader: (31)

Newage or classic? Also what grade oil and how old is it?

scoobyken

It's my blobeye. Using castrol edge 10/60. Just recently serviced too

rmaurer

I used to regularly see 90-95 deg C on my oil temps in traffic or on a good blat (WR1). On track I used to back off when up to 110 deg C which it got to fairly quickly... Since I had an oil cooler installed, I normally see ~85 deg C and have never been over 108 deg C on track (when it was 27 degrees C ambient temp last summer).

STI Glenn

85 0n motorway can go to 95 in traffic

alcazar

iTrader: (2)

Mine sits at 90 all day.
It can go to 95 when being pushed hard on a hot day.

tubbytommy

iTrader: (20)

same as mine

scoobyken

So is it safe to be sitting at around the 95 mark? What temperature should I start being worried?

rmaurer

From what I understand oil starts to break down over 120 deg C and loses its lubrication properties. 95 deg C is no problem.

MattyB1983

iTrader: (51)

Mine sits at 85 all day long and sometimes touches 90 under hard driving or sat in traffic.

scoobyken

Excellent news then.. Was starting to worry me about killing my engine with those kind of readings! Cheers guys!

harvey

iTrader: (48)

10w60 oil is not recommended by Subaru.
Different grades of oil will run different temperatures.
Classics run cooler 85-90C typically than New Age 90-95 and sometimes more.
Fitting a front mount reduces the air over the engine so there is a natural small oil temperature increase.
I have been told by several oil manufacturers not to exceed 140 deg.C. and if you look at Porsche and VAG cars fitted with oil temperature guages as standard you will see that the red line starts at 140 deg.C.
On track I would run to 125 deg.C and come in to the pits when that temperature was reached.

MattyB1983

iTrader: (51)

Believe it or not I noticed a drop in temps after fitting a reverse style bonnet vent and a set of bonnet raisers.

scoobyken

So which is the best grade oil to use on the blobeye?

petethemeat

iTrader: (6)

^ 5w30 is in the handbook, I plumped for 5w40 shell helix fully synth in my bug though.

OP - mine tends to sit at 85-90 but has broke the 100 barrier on a recent hot day after a run.

wiley

iTrader: (63)

again 5w40 motul fully synthetic.
mine is normally around 85C, but around 90-100C when in traffic and driving a little hard

wiley

harvey

iTrader: (48)

The handbook states 5w30 and if the engine is in good order that is what you should use, particularly in Winter. Personally I would use fully synthetic such as Royal Purple.

James159

Mine to sits at around 90ish after some boost on the road, and 85ish on general driving.

It was just under 110ish on the track at the weekend.

I use Millers 10/40.

Sti Addict

I was told by the garage I use that the only time they need to do a engine rebuild is when the owner has use a 5w oil, I was recommended 15w50.

harvey

iTrader: (48)

It will depend on the age of the engine. Classics use thicker oil than New Age but I think Subaru might know a little bit more than a local garage about what oil should be used, particularly in newer cars. I was using Motul 15w50 in 3 of my own Classics, all forged and steel engines but on New Age I run 5w30 in the WInter and 10w40 in the Summer.
Check your handbook but a radical departure from the manufacturers recommendation is unwise.

DT-SPD

iTrader: (7)

My handbook states a 50 oil can be used for heavy duty and/or high ambient temps. I count a remapped engine driven hard as heavy duty so use a 10w50

RICK...

iTrader: (2)

+1 minus the trackday bit