Halfords 5w-50 Motorsport oil

[BrianSmith_S2]

Noticed this in Halfords today... looks tempting, price looks ok as well.

Maybe not as good as the Silkolene 10w-50 i use at the moment but maybe worth a try.

Anyone using it on here?

[BrianSmith_S2]

Data sheets

[Al Wyn]

You replying to your own questions Brian

[DJones]

I use Comma "motor sport" 5w 50 fully synthetic in all my cars... £32 for 5L trade cant go wrong..

[s2driveruk]

no, mr dunce here removed the post really must stop trying to watch tv and reply to stuff on here...the only thing i can multi-task with is beer and kettle chips

[Fat Audi 80]

the only thing i can multi-task with is beer and kettle chips

[BrianSmith_S2]

I use Comma "motor sport" 5w 50 fully synthetic in all my cars... £32 for 5L trade cant go wrong..

Knowing the great condition of your cars...thats all the recommendation i need ..... cheers

[Al Wyn]

no, mr dunce here removed the post really must stop trying to watch tv and reply to stuff on here...the only thing i can multi-task with is beer and kettle chips

Kettle crisps and beer and a computer AND a blooming tv... boy your livin the dream there David hope youve got the wife giving you a shoulder rub as well... all sounds like hard work

[s2driveruk]

nah, she was out having diner with friends, kids asleep and was enjoying the quiet while watching the highlights of the LM24 on sky plus

[BrianSmith_S2]

I use Comma "motor sport" 5w 50 fully synthetic in all my cars... £32 for 5L trade cant go wrong..

Just bought 5L Comma 5w 50 fully synthetic from CAF for £32, a fiver cheaper than Halfords motorsport oil.

Seems Halfords is earning its 'Halfrauds' name as its apparantly the same oil

[s2driveruk]

hmm, will try that next - make a change from 10-60w Castrol Edge at £54inc

[JP]

Why is everyone using such thick oils?

I only use 5w40 fully synthetic either the Platinum stuff from main dealer or valvoline. If your oil temperature doesn't go above 110celsius continuous there is no need to go thicker than 40 which is rated at 100-110celsius. My car runs just below 100 celsius hence I don't go thicker.

Remember it is not just about lots of pressure in the oil system it is also about flow, flow being more important on a turbo charged vehicle than pressure as you need to carry the heat away quickly to replace it with fresh cool oil. Run thick gloopy stuff that needs 120 celsius to operate properly and you wear your bearings and rings out a lot quicker.

Unfortunatelly if this is what you have been running for a long time your bearing clearances will have adjusted themselves and you can't go thinner again without loads of issues.

[Jamo]

Oilman says use 5w40 or 10w50 only big thread about it I used 10w50

[BrianSmith_S2]

Why is everyone using such thick oils?

I only use 5w40 fully synthetic either the Platinum stuff from main dealer or valvoline. If your oil temperature doesn't go above 110celsius continuous there is no need to go thicker than 40 which is rated at 100-110celsius. My car runs just below 100 celsius hence I don't go thicker.

Remember it is not just about lots of pressure in the oil system it is also about flow, flow being more important on a turbo charged vehicle than pressure as you need to carry the heat away quickly to replace it with fresh cool oil. Run thick gloopy stuff that needs 120 celsius to operate properly and you wear your bearings and rings out a lot quicker.

Unfortunatelly if this is what you have been running for a long time your bearing clearances will have adjusted themselves and you can't go thinner again without loads of issues.

Ive seen oil temps upto 130 deg c when giving it a hard run around castle combe or other private tracks, but usually 90 deg on motorway.
I did originally run a good 10w 40 oil but after meeting up with forum members and tuning/oil specialists going upto a 50 weight oil seemed the way to go. Since ive had the car from 90k and currently running 172k with no loss of oil or having to give her weekly top ups.
Main issue i have with 40 weight oil is the idle pressure when running hot drops to 1.5 bar which to me was a bit on the low side. With the 10w-50 oil it sits at 2 bar. I guess the lower idle pressure from running the lower viscosity oil means less pressure and hence less oil flow.

[s2driveruk]

i've used 10w60 for years - pressure is usually spot on and was originally the choice oil banded about the froum. I've never organised myself enough to mailorder the 10w50 stuff hence not changing to it before (even if i should have by now) as my local motor factors always stock 10x60. For track driving and general abuse, the car seems to like it and doesn't consume it so never felt the need to change. I'll try a 10w50 and see how the engine reacts