oil getting warm - 120 degrees - time to get an oil cooler? (plus new castrol gtx)
Turbo Mini Forums

since changing the engine and gearbox ratios in my mpi for something a bit more livlier the oil temp gauge rises on trips along the motorway. usually it stays below 100 degrees

today though in the heat it rose up to 120.

i know minisport sell an oil cooler kit for mpi minis. im looking into getting one.

do people think this is a good idea? was doing around 70-75 on the mway, at around 4k revs, from bristol to south wales, so not a huge dstance

the water temp stays within normal limits.

the oil is topped up

also the other day i went to buy some oil for a mini service. since halford own brand wrecked the gearbox on my old spi with just 25k on the clock, i have used castrol gtx. this has always worked well for me. it seems that they have now brewed up a new 'recipie', suitable for petrol and deisel motors, with 'anti sludge' compound. im guessing the plain old gtx will be phased out. anyone got any ideas on what oil i should be looking to use in the future in my mpi?

many thanks

Millers CTV seems to be the best. Castrol 20/50 XL Classic also sounds good on paper.

If something is worth doing, it's worth doing half of.

i just dont like the sound of the new style gtx.

The oil I use in my race car is Ok up to 140degrees. I see 110-120 regularly with no cooler and that's fine.

motorbike oil,
same price,
top performance wise.

What oil do you use V. Also what bike oil Fabrice?

If something is worth doing, it's worth doing half of.

do you all use 20/50 ?

15w50 mobil1 100% synth
or 15w50 motul 300v,
for less powered mini's I'm using motul 3100/5100, price dependant
As veg said they're not feared by 120°, i'd just put an oil/water exchanger.

i got fabs advice about oil seven years ago and still happy with motul.

What halfords oil were you using Dan? The stuff in the green can with the mini on the front?

If something is worth doing, it's worth doing half of.

Edited by Brett on 4th Jun, 2010.

Yes i moved to the darkside

Instagram @jdm_brett

its was just their own brand oil, came in orange cartons. think it was synth. was a good few years ago. the gtx has done me really well. its a real shame they have messed with the makup of this oil now

Edited by welshdan on 4th Jun, 2010.

Oops i just got 25litres of old halfords 15/50 mineral oil. (all made in 2005 looking at date stamps on the bottom)

I'll give it a pop and see how I get on.

Edited by John on 4th Jun, 2010.

If something is worth doing, it's worth doing half of.