Should I worry about Carbon buildup on my 2006 Is250?

[BeepBeep]

I recently bought an IS250 with 50k on the clock and full Lexus service history, but I've been seeing lots of horror stories about carbon build up on the valves although they tend to be only coming mostly from american forums. Should I be worried about this?

[McShmoopy]

11 minutes ago, BeepBeep said:

I recently bought an IS250 with 50k on the clock and full Lexus service history, but I've been seeing lots of horror stories about carbon build up on the valves although they tend to be only coming mostly from american forums. Should I be worried about this?

I don't think it's something to get too worried about. The Americans have lower quality fuel than what is the lowest grade in the UK (95 Octane) so if it is a point of concern you could be using Shel V power occasionally or add an engine cleaning additive to stave off carbon build up. I know this was addressed with the 2009 facelifts but I don't think there are very many horror story cases in the UK for carbon build up. Doing that combined with regular servicing either yearly or every 5k to 10k miles the car shouldn't give you any major issues. 

[BeepBeep]

17 minutes ago, McShmoopy said:

I don't think it's something to get too worried about. The Americans have lower quality fuel than what is the lowest grade in the UK (95 Octane) so if it is a point of concern you could be using Shel V power occasionally or add an engine cleaning additive to stave off carbon build up. I know this was addressed with the 2009 facelifts but I don't think there are very many horror story cases in the UK for carbon build up. Doing that combined with regular servicing either yearly or every 5k to 10k miles the car shouldn't give you any major issues. 

Thanks for the advice, I can now sleep easy. I just don't want my babbe getting sick. 

[Texas]

Prob better to worry about brake calliper pins getting seized up 😀

[cruisermark]

This series of videos is very informative and intresting - in one of the videos he does exactly what you asking about - watch the full series

 

[LittleCasper]

58 minutes ago, cruisermark said:

This series of videos is very informative and intresting - in one of the videos he does exactly what you asking about - watch the full series

 

I'll deffo give it a watch, thanks 👍

[Vintagesixtysix]

I can’t immediately find it…. But there was definitely a uk forum contributor that stripped down the top of the intake, throttle body etc not that long ago and stated it was quite clean.