IRD oil

baddonut · Nov 19, 2016

Hi
any reason we can not use 80W90 APIGL5 instead of the recommended 75W90? Will it mess the IRD up? FL TD4 manual 105K miles done.
Advice most welcome!

Nodge68 · Nov 19, 2016

Presumably because it needs to be thinner when cold. The IRD oil is supposed to be 75W90 GL5 Full Synthetic

baddonut · Nov 20, 2016

The difference is very small though. I guess we go with the recommended! Hard to find it though!! Cheers Nodge68!

Skinny Mike · Nov 20, 2016

http://carlube.lubricantadvisor.com/default.aspx?lang=eng

This should help you find a suitable replacement.

Mike

davidsmith1307 · Nov 20, 2016

baddonut said:
The difference is very small though. I guess we go with the recommended! Hard to find it though!! Cheers Nodge68!

eBay has plenty. I know because mine came on Friday.

Paulindre · Jun 27, 2018

Nodge68 said:
Presumably because it needs to be thinner when cold. The IRD oil is supposed to be 75W90 GL5 Full Synthetic

Hi Nodge
I am in France and if you know where nowhere is, I am in the middle of it so the only IRD oil I could get is Motul gear 300 100% synthetic sae 75w90 API GL4/GL5...... MIL -L-2105- ESTER. Do you think this is OK or am I going to end up with a box of molten metal..

Nodge68 · Jun 27, 2018

Paulindre said:
View attachment 152074 View attachment 152073

Hi Nodge
I am in France and if you know where nowhere is, I am in the middle of it so the only IRD oil I could get is Motul gear 300 100% synthetic sae 75w90 API GL4/GL5...... MIL -L-2105- ESTER. Do you think this is OK or am I going to end up with a box of molten metal..

Motul Gear 300 75w90 is what I have in mine.

Paulindre · Jun 27, 2018

Nodge68 said:
Presumably because it needs to be thinner when cold. The IRD oil is supposed to be 75W90 GL5 Full Synthetic

On top of that it cost 36 euro for 2 ltrs. As I said in my earlier post it was last serviced in Greece and judging by what they did to the filter who knows what oil they put in the IRD, if they changed it at all.

Nodge68 said:
Motul Gear 300 75w90 is what I have in mine.

Many thanks for that Nodge, I can now sleep at night.
Paul

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