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Silkolene Silktran Syn 5 is great stuff if the gearbox is in good condition, if not any wear can become more obvious when using it. Motul Gear 300 and Redline Lightweight Shockproof are good if the gearbox has been showing some wear.
You have 3 Castrol Syntrax oils in the 75-90 section, which is best to use? In particular for my 99 Sti Ra Ltd, which has a Helical Front Diff (LSD I believe) and LSD in the rear diff as std. I have a post in another thread waiting for confirmation on this........... Anyone?
Just changed the oil in my 2.5xt Foz.
It had been grinding going into 4th both ways for the last 30k.
Bought 2 quarts of redilne shockproof and topped up with 75/90, it now changes silky smooth even under hard acceleration.
Last edited by krazysteve; 28 May 2012 at 11:43 PM.
Someone put cheap rubbish gear oil in my old WRX and I had difficulty in engaging first sometimes, and it wasn't smooth at all.
Switched to Castrol Syntrax and the difference was night and day.
I've read brilliant reviews of Motul Gear 300 and Redline on Nasioc and MLR.
Just goes to show it's not worth skimping on gearbox oil!
Hi, can anyone please give me some advice about my 2006 Cat D Forester with genuine 7,000 miles. It had front damage (surprise!) which lifted and pushed back the engine 2 or 3 inches.
It jumps out of 5th gear with great force after being run at motorway speeds for 20 miles or so and does so continuously every few seconds until I stop and let it cool again.
I can run it around at 60mph without it happening at all.
Gears engage without problem and feel solid enough, but it's not possible to hold the gear in place when it goes.
The oil has never been changed and there are no signs of a leak
If you want to go for the best, the Millers CRX 75w-90 NT, Gulf Competition, Motul Gear 300, Red Line 75w-90NS and Millers TRX are ideal for the gearbox. The Castrol Universal/Universal Plus, Motul Motylgear and Fuchs Gear Syn are all decent alternatives. The Fuchs Syn 5, Millers CRX, Redline 75w-90 GL5, Motul Gear 300 and Gulf Competition are ideal for the diff. The Fuchs Sintopoid, Castrol Syntrax Longlife, Millers TRX, Motul Motylgear, Mobil SHC and Amsoil FGR are also good choices.
Tim, Cheers for getting back to me i appreciate that. What would i get for around £50 - £75 for both the diff and box oil? or am looking at alot more. I ahve spent alot of money on the car rescently and i would prefer to keep the cost down if i can but i know it needs doing so will bite the bullet and folk out on the better stuff if needs be.