Engine & Gearbox Oils?

[alias23]

Anyone changed their own engine and gearbox oil? Looking to see what's involved.

Also any recommendations on which oil factory or upgraded options?

[RedViper]

Fuchs Titan Pro Race S 5W/40 in the engine (Formerly Silkolene Pro S)

Redline MT90 in the gearbox.

I haven't don't either myself but cant be that hard, with the caveat that even taking undertray off without ramps / lift is a bit of a faf

[Chrisc]

Normally they would leave an access flap to get the sump plug out, so should not be too hard. Would be interested to know, as i will do a change every 3-4 k anyway. 

[Seriouslylotus]

1 hour ago, RedViper said:

Fuchs Titan Pro Race S 5W/40 in the engine (Formerly Silkolene Pro S)

Redline MT90 in the gearbox.

I haven't don't either myself but cant be that hard, with the caveat that even taking undertray off without ramps / lift is a bit of a faf

MT90 is only GL4 specLotus recommend a GL5

[Arun_D]

2 hours ago, Chrisc said:

Normally they would leave an access flap to get the sump plug out, so should not be too hard. Would be interested to know, as i will do a change every 3-4 k anyway. 

Are you new to the ways of Lotus?

Undertray off, I'm afraid.

 

[Chrisc]

29 minutes ago, Arun_D said:

Are you new to the ways of Lotus?

Undertray off, I'm afraid.

 

 afraid so lol

[alias23]

3 hours ago, Seriouslylotus said:

MT90 is only GL4 specLotus recommend a GL5

This one @Seriouslylotus ?

http://www.opieoils.co.uk/p-1017-red-line-synthetic-gear-oil-75w-90ns-gl5-non-limited-slip.aspx

Any ideas how much oil I need for the gearbox and engine?

[NW76]

With 50/50 track and road use any how often do you guys really do a gearbox oil change?!? Any recommendations? 

Engine Oil I think I will do once a year ... which is roughly 6,000 kms for me... 

Cheers

Norbert

[Seriouslylotus]

39 minutes ago, alias23 said:

This one @Seriouslylotus ?

http://www.opieoils.co.uk/p-1017-red-line-synthetic-gear-oil-75w-90ns-gl5-non-limited-slip.aspx

Any ideas how much oil I need for the gearbox and engine?

Must have changed it then!

[RedViper]

If your ordering redline you need 3 quarts ?

[French Frie]

I was very pleased with the synt. Motul Gear 300 75W90 in my Elise S2 manual gearbox... shifting was really smoother !

PS: it is also available for LSD if needed (for Evora 400) !

 

[MartynB]

12 hours ago, Seriouslylotus said:

Must have changed it then!

No Dave, you're right, that isn't MT90. It's the "racing" GL5 equivalent. MT90 is still GL4

[alias23]

So @Seriouslylotus @MartynB is this the right one then?

http://www.opieoils.co.uk/p-1017-red-line-synthetic-gear-oil-75w-90ns-gl5-non-limited-slip.aspx

[MartynB]

Should be fine and Redline are well regarded. There are loads of alternatives in a fully synth, GL5, 75w90, without LSD additives (these can mess up the synchromesh).

[550superfast]

Mogul gear 300 in my box now. Reason was it should cope with heat better than standard oil. 

[alias23]

1 hour ago, 550superfast said:

Mogul gear 300 in my box now. Reason was it should cope with heat better than standard oil. 

Is that what Lotus Motorsport put in for you? Im assuming its this one:

http://www.demon-tweeks.co.uk/Product.do?method=view&n=516&g=662443&p=662594&d=124&c=4&l=2&utm_source=Google&utm_medium=Base&utm_campaign=Gear Oil&gclid=Cj0KEQjw0f-9BRCF9-D60_n4rKcBEiQAnXW4-6XJx6Oa6H-da9CKuCjNaasz9re7B98TOu27jH_cZq0aAont8P8HAQ

Any improvement to gear changes?

[550superfast]

I bought it from Opie, this is it

http://www.opieoils.co.uk/p-899-motul-gear-300-75w-90-fully-synthetic-racing-car-gearbox-diff-oil.aspx

Then Simon at CMS put it in for me http://www.classicmodernsports.co.uk/

Gear change feels the same

[French Frie]

That's the very same I mentioned upper ... But sometimes I feel like the customs barriers from the Brexit are already settled  !

[RedViper]

On 24 August 2016 at 16:38, Seriouslylotus said:

MT90 is only GL4 specLotus recommend a GL5

Is this a new recommendation or maybe recommended for Cups (don't know why they would be different). Just checked my manual and it says 

quality standard : API GL4

 

[alias23]

Forgive the naive question but what's the difference between GL4 and GL5?

Also any reason why folks recommending Fuch vs Petronas for engine oil?

[550superfast]

Looks like lotus have changed their minds. 

 

[alias23]

Im now completely confused...

[RedViper]

16 hours ago, 550superfast said:

Looks like lotus have changed their minds. 

 

That's a bit naughty!

surely they should be writing to people to tell the change in requirements!

[Ian Lockwood]

Hmm, 0w40 for track use, I have 5w40 Pro S in as that's always done me proud on track, but now I'm wondering if I should go 0w40 (although I do more road miles than track...)

[MartynB]

Not too much in it really, esp for hot use. 0w-40 is thinner at 40 degC than 5w-40, but the same at 100 degC. This means the 0w-40 will generally get circulated a bit quicker on a very cold start, due to lower viscosity, so you would want to give the engine a bit more time to warm up on the 5w-40.

If anyone doesn't know, the multigrade numbers are viscosity equivalents at two temperatures, 40 and 100 degC. The 40 degC is the "winter" viscosity, hence the "w". A multigrade oil has additives in it to keep it thicker than a single grade oil as it warms up. If it is as thick as a 0w monograde oil at 40 degC, but stays as thick as a 40w monograde would be at 100 degC, then it's rated 0w-40. So generally, the bigger the difference between the numbers, the more pronounced the multigrade effect is, i.e. the less it thins with heat.

HTH