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10/40 = cool?
Posted: Mon Dec 28, 2009 6:21 pm
by MickyS
hey, im just trying to find a general concensus as to which grade oil is best, lots seem to say 10/40, some 15/40, but some disaagree with both........?? whats the deal? also any fave brands? im runnin a 1800 weber carbed gt2
Re: 10/40 = cool?
Posted: Mon Dec 28, 2009 8:41 pm
by dozzum
15W40 Mineral, its what they were designed to run on so why use anything else???
Re: 10/40 = cool?
Posted: Tue Dec 29, 2009 10:11 pm
by MJK 24
I'd use the Quantum Synta Silver 10w40 semi synthetic.
Your tappets will benefit first thing in the morning and at £8 per 5 litres from VW, nothing beats it for VFM.
Re: 10/40 = cool?
Posted: Wed Dec 30, 2009 4:05 pm
by RoccoGTII
I've put in Mobil Super S 10w/40 5L Semi-synthetic. Sounds good when started, no tapping and runs nicely. If you change the oil - you would benefit from changing the plugs at the same time.
My advice is spend money on good oil and avoid the cheap stuff.
Would be interested to see what other people use?

Re: 10/40 = cool?
Posted: Wed Dec 30, 2009 6:45 pm
by the edmundator
I use whatever GSF send me, because it's cheap and usually good stuff (e.g. Quantum).
Re: 10/40 = cool?
Posted: Wed Dec 30, 2009 7:50 pm
by tinkerbel
I use GTX high milage, its now at 170k, change oil and filter at 3000k and up to now she not complained thats the rocco I mean,

Re: 10/40 = cool?
Posted: Wed Dec 30, 2009 9:27 pm
by jim91
dozzum wrote:15W40 Mineral, its what they were designed to run on so why use anything else???
Been running mine on Duckhams 15/40 last 3years.........use it on all my VWs
