We’re always getting asked which oils and how much to use in Evo’s.Our sister company X-treme UK, who are a high performance vehicle specialist based in the West Midlands, recommend the following:
Lubricant quantities as follows:
- 5 and 6 speed gearboxes: approx 3 litres of oil (this feeds front diff. part of transfer box, as they are inter-connected)
- Transfer box: approx 0.6 litres of oil (this oil is for the transfer gear CWP)
- Rear diff: approx 1 litre of oil
- AYC hydraulics and reservoir: approx 1.5 litres of oil
Oils that Xtreme use/alternatives:
ENGINE Oils
- Engine oil for Evo 4~9 – Castrol Edge Sport 10w60 fully synthetic
- Engine oil for Evo 10 – Castrol Edge Sport 5w40
GEARBOX Oils
- 5 speed gearboxes – Castrol Syntrax 75/90semi synthetic/Cusco 75w-85
- (with plated LSD fitted at front, use Cusco / KAAZ 80w-90)
- Competition gears, especially dog-type gears – Cusco / KAAZ 80w-90
- 6 speed gearboxes – Castrol SMX-S 75/85fully synthetic or Cusco 75w-85
TRANSFER BOX Oils
- Transfer box Evo 5/6 - Castrol Syntrax 75w-90
- Transfer box Evo 7~9 – Castrol LS (LSD oil)
- Special Note – some tuners/gear specialists, such as ShepTrans, strongly recommend the MMC official oil Diaqueen LSD Oil SAE 90 or for extreme use Motul PA90, but that Diaqueen is not readily available in the UK, Mitsi Dealers use Morris XEP80W/90 LSD Oil
Rear Diffs
- GSR Rear diff (diff.section of AYC type – all GSR) – Castrol Syntrax75w-90 or Cusco / KAAZ 80w-90)
- RS Rear diff (all RS, RS2, GT) – Castrol LS or: Cusco / KAAZ 80w-90 or Cusco 80w-140
AYC system
- MMC Diaqueen only
SST Transmission – Evo X, R35 GTR, etc.
(these semi-automatic DSG type gearboxes need very special oils, as they are very susceptible to problems, especially when hot).
The normal recommendation for Evo X by MMC UK is SST F1 Diaqueen (when available)
We can offer that OE product and also:
- Fuchs Titan ATF 5000 SL, which is a fully synthetic, heavy duty ATF
Or
- Moty’s M351 and M352 DCTF: http://www.motys.jp/products/motoroil/dctf.html
Uprated oils are essential for tuned Evolution Xs with SST, along with improved capacity and/or oil cooling (SST upgrades available from X-treme UK).
You can purchase oil from Co-ordSport by contacting us, by using one of our dealers or buying gear oil online at our PartBox online shop.
More information about some of the oils discussed in this article can be found in the links below:
Also, recommendations given to Mitsubishi dealers can be viewed below:
Official Mitsubishi oil recommendations – Evo 8, 9 (European)- Official Mitsubishi oil recommendations – Evo 4, 5, 6, 7, 8, 8MR, 9, 9MR, X
Tags: ayc, cusco, diff, evo, gear, kaaz, lsd, oil, transmission, x-treme
