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[peter19730]

am just wondering what the service intervals are on my 99 2.5 and whether its best to upgrade the oil to fully synthetic. also just noticed that my rear n/side wheel seems to be at a slight inwards tilt in comparison to o/side which seems straight, any ideas

[tunnie]

Offically, service intervals are 20k but that was just to please fleet managers.

Change the oil every 3-5k with GM 10/40 Semi Synth, its good stuff, and very well priced (£35 for 20L)

Not much point in fully synth GM V6 does not really warrent it, fully synth is designed for serious high performance engines, that rev very high, and need sustain higher temps.

In UK, GM 10/40 Semi is fine. 

[peter19730]

cheers tunnie any ideas on the wheel, i was thinking bearing but theres no noises from it

[tunnie]

i am not too good on suspension componets, someone else will be along shortly....

[TheBoy]

Fresh oil every 3k as Tunnie says. GM semi is the way to go.


Wheel - has to be a bent arm/hub/assembly, as there is not that amount of adjustment in the rear for camber (on Omega, rear toe also can have a small affect on camber. No direct adjustment for camber)

[Tony H]

Have you slid and curbed it in the snow and ice at all?

[peter19730]

nope only noticed it as was changing the exhaust

[Omegadoha, Desert Member]

My rear wheels also have a very slight inward camber and front wheels are straight. I know it is a problem when you have a camber on the front.

[TheBoy]

Check both rear springs are complete...