stevemoir

iTrader: (24)

Hey folks

looking at oil options

im currently runnning >400 bhp (with motul 5w 40)

my oil change is due soon

any recommendations on which oil to use

cheers

steve

bighead

iTrader: (1)

motul 15-50 full syn

banny sti

iTrader: (68)

millers 10w50 for better cold protection

fastboyslim

iTrader: (2)

I second Banny!

oilman

iTrader: (9)

I would say a very good 5w-40 would probably be the way to go, unless you are getting high (over 125C) oil temps, then a 10w-50 is the best choice.

http://www.opieoils.co.uk/c-656-5w-40.aspx
http://www.opieoils.co.uk/c-659-10w-50.aspx

Out of those, the best ones are the Fuchs/Silkolene Pro S, Millers CFS, Motul 300V, Redline and Gulf Competition.

Cheers

Tim

fastboyslim

iTrader: (2)

Hey Tim, last year Opie told me to stay away from 5w-40, why the change?

Stevesbluewrx

iTrader: (4)

I was using Silkolene Pro S 5w/40 but changed over to Silkolene Pro S 10w/50 once I went up to 400+ bhp.

My oil temps stay very good and have only seen it go over 100 a few times. Most of the time anything from 7-91 circa.

I was going to go to Bardahl oil as I have heard about a new oil generation they use that others haven't cotton onto yet. But I have just purchased another load of Fuchs (used to be Silkolene) Pro S 10w / 50.


Steve

maydew

iTrader: (9)

gulf competition which ever grade 5/40 or 10/40 , real good offer on at opie oils 5l for 30 quid bargain,i brought 10l 3week ago oil changes for the year.

oilman

iTrader: (9)

Depends on the car. I'm assuming yours is more modified than the one I was recommending the oil for, has piston slap, is noisy, etc etc etc

oilman

iTrader: (9)

Stick with the Pro S rather than getting the Bardahl, no matter what their marketing might say. Their magic ingredient that the other companies are yet to use is actually from the 60s and the other companies realised it doesn't work.

http://en.wikipedia.org/wiki/Fullerene

Bardahl use the Buckyballs Fullerenes and while a layer of minute ball bearings between surfaces seems like a great idea, it doesn't work as the buckyballs are to small. Carbon nanotubes are possibly a help with lubrication, but that's not decided yet. If you google fullerene you'll find some articles about Fullerenes in lubrication, but the articles and research are really bad, they actually make any research they have done completely pointless as it's all so inaccurate.

Cheers

Tim

Mark10sti

iTrader: (2)

Had my car done at teg sport and they said best oil for 400+hp and the oil i use is fully synthetic 15-50

oilman

iTrader: (9)

For most cars a 10w-50 is better than a 15w-50 as it flows better from cold.

350bhptype~R

iTrader: (4)

i use castral edge 10w-50 running 450bhp

Arch

iTrader: (59)

Motul 300v is the best oil available for a high spec high reving engine.

oilman

iTrader: (9)

I agree, however remember the 300v is one of the best. There are others.

Cheers

Guy

WhiteWagonMan

iTrader: (34)

do any of you guys change the grade of the oil according to time of year,warmer summer months so different thickness oil to colder winter months etc,or is it best to just stick with one that covers all year round.

Sc0oby

redline 5W50 is now available will be trying it out soon

barnshaw

iTrader: (1)

motul comp300 15w-50 for me, V8 sti with 380hp