Secret Green Sauce

I love taking my LS430 on long trips. Spain and Scotland both ticked off this year. I was particulalry proud of this recent run up to to the highlands from London, managed to creep over 500 miles on one tank and average 31.2mpg for the whole journey up there. Used lot's of cruise control, but had a heavy right foot accelerating up to motorway speeds, and plenty of overtaking on the way so wasn't trying to hypermile it. There were still 5 litres left in the tank when I filled up in Glencoe so she could have gone even further 🙂 What's your best run?

@MLW and for others in case of interest. This is the detailed quote I recently received from Lexus Croydon for the work. Still waiting on prices for the water pump and idler pulley no1, but it gives a good indication how much it costs to do a thorough job. incl VAT 120k mile interim service 348.00 cambelt 86.68 cam belt tensioner 131.32 cam belt idler no1 142.10 cam belt idler no2 143.80 fan belt tensioner 138.42 idler pulley 441.82 idler pulley no 1 idler pulley no 2 126.67 water pump coolant 6 litres 90.72 radiator B 563.30 serpintine belt 77.74 thermostat 61.70 gasket 8.15 4 wheel alignment 186 Total parts 2,546 labour 1264.8 All in £3,811 @Lexus_2023 How's your post coming along, I'd be keen to try to source some of these parts cheaper elsewhere if possible. Thanks

Thanks Malc. Phil, interesting suggestion, I haven't come across UAE parts sites before. I'll give it a Google, but any specific sites you can recommend would be helpful. Other than services and consumables, this'll be the first mechanical job done since I've owned the car. Fingers crossed it goes well!

I appreciate the quick replies. Malc, yes the timing belt was done before, at around 60k I believe, so this would be it's third belt since new. For the 430, I've read that every 60k or 10 years is a good cycle for regular timing belt replacements. Although I know this differs to the original manual (100k) and opinions vary. I don't know if all the idlers/pulleys/etc were replaced previously. I don't think it's the 'norm' to replace the full list in my previous post, so I suspect not. It has it's original radiator, so I'm keen to change that. Thanks Steve for the amazon link - looks like a great option. Do Aisin do rads as well? If anyone has any recommendations on London mechanics that would be appreciated. Thanks again

Hi all, My LS430 has just crossed the 120k miles mark, and as it's also approaching 20 year birthday (next year), so I thought that I'd tackle the timing belt change at the same time as its annual service. I appreciated finding this post as it is one that took an approach to replace the parts exhaustively (water pump, timing belt, idler pulley, tensioner pulley, tensioner, thermostat, serpentine belt, AND radiator). This approach aligns with what I've watched on the car care nut's youtube channel - who seems to be a trusted voice on Lexus maintenance. I figure, do it properly, and the car is set up for another 60k miles or 10 years. I'm not able to do the job myself, but wanted to ask, where could one source all the parts? I'm going to get a quote from Lexus, but am likely to try to go down the independent garage route if I can get a competitive quote from one. Although there don't seem to be many Lexus specialists in London from what I can find on Google. Any recommendations here, would also be appreciated. I'm SE11 based myself, but happy to travel a bit for this to get to a trusted/experienced mechanic. Many thanks

I'm the new owner of @jenkiadr's LS430. It's my first LS, and not to state the obvious, I'm extremely happy with it and it's gone down very well with the family. Living in central London the mpg number is one to ignore however! My thanks go to Jenkiadr for taking great care of it. Looking forward to many happy years of ownership and adventures along the way.