Engine oil & dearbox/diff oil grade...
21 February 2010, 12:10 PM
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Engine oil & dearbox/diff oil grade...
Have just purchased a 1998 uk turbo, unsure of if it has an LSD or not?
Anyway, from a glance through the owners manual, i understand that 10w30 in winter and 10w40 in summer would be the ideal way to go....but NOT 5w30?
And both gearbox and diff need GL5 75w90?
Can anyone confirm this?
Anyway, from a glance through the owners manual, i understand that 10w30 in winter and 10w40 in summer would be the ideal way to go....but NOT 5w30?
And both gearbox and diff need GL5 75w90?
Can anyone confirm this?
21 February 2010, 04:50 PM
#4
The centre and rear diffs are effectively 0-100% LSDs. They are viscous coupling types. The front diff is a regular open 'free' diff.
I think a 10W-40 or 10W -50 are the recommended weights for your car. Can't go wrong with Silkolene Pro S or Millers CFS in these weights. Fully synth oil stays in grade for longer, so protects the engine's/turbo's bearings more, between oil change service intervals.
I think a 10W-40 or 10W -50 are the recommended weights for your car. Can't go wrong with Silkolene Pro S or Millers CFS in these weights. Fully synth oil stays in grade for longer, so protects the engine's/turbo's bearings more, between oil change service intervals.
Last edited by joz8968; 21 February 2010 at 04:58 PM.
21 February 2010, 08:46 PM
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Think you will find the standard classic Impreza are open front and rear, LSD centre only.
On my MY97's I run 10w40 semi all year.
Gearbox 75w90
Rear diff 80w90
As per my understanding of the manufacturers recommendations for unmodified UK Scoob.
Hope this helps
On my MY97's I run 10w40 semi all year.
Gearbox 75w90
Rear diff 80w90
As per my understanding of the manufacturers recommendations for unmodified UK Scoob.
Hope this helps
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21 February 2010, 09:56 PM
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OOPs, quite correct. Don't know why I wrote that it wasn't. Just finished 48 hours this week so obviously not thinking straight. Thanks for the correction.
22 February 2010, 05:42 AM
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I think i'm going to go for some millers semi synth....its half the cost of fully synth, but i know from using it before thats it some incredibly runny oil.
Only other thing on this service is coolant.....normal pink stuffs ok i take it?
Only other thing on this service is coolant.....normal pink stuffs ok i take it?
22 February 2010, 07:31 PM
#14
As for oil, a 10w-50 like Pro S or Millers CFS is ideal, but if you want a cheaper option the Millers semi 10w-40 will be fine, but you'll need more regular changes.
Cheers
Tim
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