Recommended oils ?

[Dazza N]

What type and viscosity of oil is recommended for the Sp6 Guys ?

[RedSpike66]

Dazza N said:

What type and viscosity of oil is recommended for the Sp6 Guys ?

Lots of advice in here...
http://www.pistonheads.com/gassing/topic.asp?h=0&a...

I think generally speaking it's a fully synthetic 0w40, 5w40 or similar, Millers is highly recommended by some.

[T450t]

Way to thin

[blueg33]

10w40 semi synth for me. But I listen to Dom at Power Others will tell you he is wrong. He warrants my engine for 5 years and 100k miles. To me that makes him right.

[m4tti]

T450t said:

Way to thin

Don't think so. The 0w - 40 oil behaves like the 10w - 40 at operating temperature and a SAE 0 at oil cold temperature or winter. Ie when cranking from cold the oil flows better offering more protection at start up than the 10. It's not any thinner at operating temp. The semi synth bit is almost irrelevant apart from it being cheaper and breaking down quicker.

Whether the brand tvr power recommend still have additives like zdp is another matter.

Edited by m4tti on Tuesday 31st January 22:25

[m3jappa]

blueg33 said:

10w40 semi synth for me. But I listen to Dom at Power Others will tell you he is wrong. He warrants my engine for 5 years and 100k miles. To me that makes him right.

Same here, sounds unbelievable to me but i think he just may know a bit more than me.

Told me to use shell helix 10w 40 semi, which is a result because its so cheap its almost free Makes an interim service very painless.

[duff-man]

Mobil1 15w-50 here

[clive f]

5w40, as recommended by jason at str8six, in fact just bought quite a few litres from Opie with their january sale, Gulf competition oil with high zinc content, as I`m not running with cats then no problems.

[m4tti]

clive f said:

5w40, as recommended by jason at str8six, in fact just bought quite a few litres from Opie with their january sale, Gulf competition oil with high zinc content, as I`m not running with cats then no problems.

Hi Clive im presuming that the Gulf competition oil is synthetic?

I was considering the Gulf, Miller or Fuch(Silkolene) competition oils as I'll be dropping the gearbox out of mine soon so will drain the engine whilst im there.

[T450t]

m4tti said:

Don't think so. The 0w - 40 oil behaves like the 10w - 40 at operating temperature and a SAE 0 at oil cold temperature or winter. Ie when cranking from cold the oil flows better offering more protection at start up than the 10. It's not any thinner at operating temp. The semi synth bit is almost irrelevant apart from it being cheaper and breaking down quicker.

Whether the brand tvr power recommend still have additives like zdp is another matter.

Edited by m4tti on Tuesday 31st January 22:25

Don't know how you drive your 2001 Tuscan and I don't know what condition your speed 6 is but lets say it's worn in which most are now!. if you drive it at 30MPH down the high street or even driving it spiritedly down the NSL roads 0-40 will be fine. Try using 0-40 around a track and you will find it will have probably exited your car through the exhaust. 0-40 to thin.

Of course this just my opinion.

[clive f]

hi matt, details of the gulf oil here;
http://www.opieoils.co.uk/p-60122-gulf-competition...

I like to change my oil every 3k miles anyway, probably over fussy, but thats just me

[m4tti]

That's a cracking price at the moment. 10 litres for 60 quid.

[RedSpike66]

My question to Opie Oils...
Hi,
Had a good read through all this, mainly seeing what I could learn about engine oils and lubrication, and also to get solid advice for the Speed6 engine in my TVR Sagaris.

........ Engine: TVR 4.0 Speed6 'S' spec (De-catted)
........ Mileage: 26k
........ Miles/yr: 7k
........ Driving Style: Always warmed up, spirited driving (I love 2nd and 3rd gears!!), fast roads.
........ Track Days: One or two so far

You nearly always recommend 0w40 or 5w40 fully synthetic I think, but sometimes variations like 10w50. So I have a couple of questions.

1. What would you recommend based on the above.
2. What is the differences between 0w40, 5w40 and things like 10w50 ?? (what do the numbers mean ??)
3. Is ZDDP content important for the Speed6 ?
4. If ZDDP is important, is it high percentage in the oils you've recommended ??

Many Thanks in advance.
Mike


Their response....

Hi

For your car, I'd be looking at a 5w-40. Your engine is designed to run on a 0w-40 or 5w-40 and you get a much better range of quality 5w-40s than of 0w-40s.

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

Out of those, the best ones are the Fuchs/Silkolene Pro S, Millers CFS, Motul 300V, Redline and Gulf Competition. The Motul 8100 X-Cess, Millers XFS, Fuchs Supersyn, Shell Helix and Mobil Super 3000 are good, cheaper alternatives.

This explains what the numbers mean

http://www.opieoils.co.uk/pdfs/tech-articles/Engin...

ZDDP levels are not as important as a lot of people make out, especially when quality oils are used. All oils that are API SL and earlier do not have reduced ZDDP levels, it's only SM and SN oils that have reduced ZDDP amounts, but those oils generally aren't what you'd choose for things that traditionally use higher ZDDP oils.

Above, where I recommended some oils for your car, the ones that I listed as the best ones are all race quality oils. As they are ester based, that covers the need for ZDDP, but they have high ZDDP levels anyway.

Cheers

[clive f]

so, mike ignores Opies advice and rushes down to Morrisons to buy some cooking oil instead!

[RedSpike66]

I'm thinking about the planet... Vegetable Oil... how green am I ??? And you know Bali likes her chips...
I might ring ya tonight..

[m4tti]

T450t said:

Don't know how you drive your 2001 Tuscan and I don't know what condition your speed 6 is but lets say it's worn in which most are now!. if you drive it at 30MPH down the high street or even driving it spiritedly down the NSL roads 0-40 will be fine. Try using 0-40 around a track and you will find it will have probably exited your car through the exhaust. 0-40 to thin.

Of course this just my opinion.

Out of interest what oil do you use on track days?

[T450t]

m4tti said:

Out of interest what oil do you use on track days?

Was using Royal Purple XPR 5W30 but have moved onto Silkolene Pro S 5W40

[m4tti]

Im just about to replace mine with 10w - 40 Gulf Competition, before doing some light track days this summer.

[xTVR]

Dom recommended to me that I use 10w40 semi synthetic, as he does to us all - no particular brand preferred. Just get it from Halfords.
However, is that OK for track use in the opinion of the experts on here?

[TOV!E]

I use what Dom puts in, have done 10+ track days, 1000s of miles all over Europe and never had to top the oil up, 10/40 semi, and it's cheap, and you can get it anywhere.