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skinny_monkey
Nürburgring


Joined: 16 Sep 2014
Posts: 429



PostPosted: Sat Mar 25, 2017 10:33 am    Post subject: Reply with quote

Marky911 wrote:
Morning Monkey, thanks for the suggestions.
Yes I just mean suitable spec for my year of car so ACEA or API. A40 is the approved Porsche list spec so I won't find a 10/50 A40 spec as Porsche don't approve of 10/50 for our engines.

That oil I linked to is perfect spec, API SJ but for some reason the company wouldn't say one way or another.

Anyway like I say I'll go with my Indys stuff for a year then go back to Millers next year.
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Ate you sure you have your specs the right way round? SJ is an old spec - SL / SM are more current. But not always that relevant to old school engines as the world's is going downsized boosted now so the specs cater for this environment. So SL is fine but bear in mind that API are American specs and generally US oil is much lower quality than euro oil (but they change it much more frequently to make up for that). Having said that ACEA specs are quite old now - A3 has been around for a while, I'm not sure if it gets updated our not.

OEM specs are normally much more severe than industry standards. So if an oil passes VW / BMW / GM / Merc etc its probably fine. To be honest even if it doesn't have those OEM specs its not too say they wouldn't pass - it just costs a bloody huge sum of money to submit for testing and you just wouldn't for a high quality Motorsport oil, you do that for your high volume general consumer product.

Generally if it's fully synthetic, it will be a good product. Make sure it's the correct spec (ACEA A3) then choose your grade and your favourite brand, based on price, loyalty or whatever else. You can't go too far wrong.
 
  
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Marky911
Indianapolis


Joined: 04 Jun 2009
Posts: 2418



PostPosted: Sun Mar 26, 2017 8:55 pm    Post subject: Reply with quote

Good info Monkey. Cheers.

Yes SJ is old but is very relevant e.g. suitable for our engines, as post I linked to, as it dates back to when our engines were new. Some of the newer specs SM etc don't have the same additives for our components.

My Indys oil is proper A40 spec but only 5/40 obviously. I'd rather go 10/50 as my car only sees summer use and doesn't do short journeys so the 10 grade at start up is worth it for the 50 grade when hot.

Yeah most fully synths are good these days so I'll keep reading when I'm bored and see what's out there.
The Morris stuff I linked to is 10/50 and so similar to millers 10/50 spec and viscosity wise. Only £66 for 10ltrs which is half the price of millers.
Still tempted to give it a go.
 
  
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MMT
Monza


Joined: 18 May 2011
Posts: 159



PostPosted: Sun Mar 26, 2017 9:49 pm    Post subject: Reply with quote

I used to have a BMW 535D and used a big BMW specific Indy over in Sheffield. They use Morris Lubricants.
 
  
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skinny_monkey
Nürburgring


Joined: 16 Sep 2014
Posts: 429



PostPosted: Mon Mar 27, 2017 2:21 pm    Post subject: Reply with quote

Marky911 wrote:
Good info Monkey. Cheers.

Yes SJ is old but is very relevant e.g. suitable for our engines, as post I linked to, as it dates back to when our engines were new. Some of the newer specs SM etc don't have the same additives for our components.

My Indys oil is proper A40 spec but only 5/40 obviously. I'd rather go 10/50 as my car only sees summer use and doesn't do short journeys so the 10 grade at start up is worth it for the 50 grade when hot.

Yeah most fully synths are good these days so I'll keep reading when I'm bored and see what's out there.
The Morris stuff I linked to is 10/50 and so similar to millers 10/50 spec and viscosity wise. Only £66 for 10ltrs which is half the price of millers.
Still tempted to give it a go.


Yes one hand hand SJ dates back to when our cars were new but technology moves on and improves. Ester synthetics and even full PAO synthetics were not common back then but these are significantly better than mineral oils. On the other hand yes some new oils have a different additive system for modern after treatment devices that we don't need to worry about. Rarely a consideration with Motorsport type oils tho
 
  
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mikeluke
Kyalami


Joined: 03 Jun 2014
Posts: 1877
Location: Hampshire


PostPosted: Mon Mar 27, 2017 2:33 pm    Post subject: Reply with quote

Costco

From April 3rd they have 20% off Castol Edge - 4 litres is under £26....
_________________
Current:
981 Boxster S PDK
BMW X5 4.0d M Sport
BMW M140i (Mrs L's)
VW Polo Match 1.2 (the lad's)

Former:
996 Turbo S Cabrio Manual
996 Turbo Coupe Tip
968 Cabrio Manual
 
  
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