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Oil Temp

R32 GT-R

By R32 GT-R,
in Engines & Forced Induction

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R32 GT-R Collaborator

R32 GT-R

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I went for a bit of a spirited run up a windy road in my completly stock, apart from zorst, R32 GT-R. The oil temp got up over 100 maxed around 105. The oil is fully synthetic mobil 1 variety. I was just wondering wat is the maximum temp I should let the oil get to before I should start to worry about bearings e.c.t. Also on the way down the windy road the brake pedal disappeared to the floor which was an interesting experience they came back 15 mins later presumably when they cooled down. Would some exotic brake fluid help this or should I just upgrade the brakes if I continue the windy road drives. :rolleyes:

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WetGTR Proficient

WetGTR

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When it starts getting over 120 degrees, start looking at oil coolers and with the brakes, yep brake fluid will help & a good set of pads. Try the Motul RBF600 brake fuild & RB74 front pads with comp2 rear pads.

Another thing is don't ride the brakes, what I mean is brake and then take your foot off as any friction will build up heat.

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Dale FZ1 Veteran

Dale FZ1

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Pick up the phone, dial the freecall number to Mobil and speak to a techo. You should find that a full synthetic is designed and rated to easily withstand 105 deg C temps.

If that's the max you get, little to worry about especially for a road car getting limited thermal loading.

If you want to run track work, oil coolers are an easy way to achieve more consistent temps and reliability.

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R32 GT-R Collaborator

R32 GT-R

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Trust me it was a very sprited drive up hill with plenty of full throttle accelleration, hard braking then back on the throttle repeatidly for a solid 20 mins. I wanted to find the limits of my driving and the car. The part I love about the gt-r is it is so easy to drive it hard, I very really find myself in a situation where i'm out of control.......so I need more power lol

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djr81 Grand Master

djr81

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I am curious about the opposite - How cold is too cold? Curious at what point I need a thermostat on the oil cooler

And where are you guys taking the measurement from?

Look at it this way - the stock oil temp gauge on a GT-R is in the range of about 70 degrees to 150. If you are just cruising along it settles at about 90 degrees. So you would infer that 90 degrees is a good aim point for the oil temp.

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Busky2k Veteran

Busky2k

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Fanging it hard at >120C for a long period is no good because the oil thins rapidly and wouldnt provide an optimum film thickness to maintain good antiwear properties. Anywhere between 80-110C is safe but if your oil is constantly under 60C, or it takes more than 10 minutes to reach 80C, I'd definitely be thinkin about getting a thermostat.

Edited by Busky2k
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luckydip Enthusiast

luckydip

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Interesting this oil temp subject. I circuit race a 32 Gts-t 2.2 with 235RWkw ans using MOTUL 300V chrono 10/40 ($$$) and a heap of Greedy top of line elect gauges, big trust radiator and 9 row oil cooler (originally mounted behind RH guard). First outing last Sept and oil got to 115, water 88. Told this was too high - so moved oil cooler behind intercooler.

Next race (bit hotter day) and different track - oil peaked at 225 and water 100 for most of day.

Before next meet, I heard that up to 130 Ok, so left oil cooler where it was due to lack of time.....but put in some air deflectors - still ran at 125 and water about 95 all day.

About 50ml of oil in catch tank over 3 meets. Oil still looks and smells good.

At "brisk driving" (about 80% on track) oil stays at a steady 88.

Hope this all helps abit.

Kerry

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