johnbiker7

Hi All, are we not missing the point here. Speed humps are there for a purpose they make us stick to the speed limit, by making it very uncomfortable to go over them. It is the same when people complain about being caught speeding. The answer is in the drivers hands, or should I say right foot. We all like to drive fast, it's one of the pleasures of driving. If there was no deterrent the idiots out there, and we have all seen them ,would drive at any speed they feel like. Lets not forget people, a car in the wrong hands is a lethal weapon. I don't like speed humps at all, but they make me keep my speed down, and the only speed effective speed cameras are the type that register average speed, I don't like them either!

Electric vehicles seem, on the face of it, to very good for co2 reduction, but it all depends on how the electricity to charge all those batteries is generated. At the present time if we have a really bad winter, they have to bring online mothballed coal powered capacity. The question is if at some unknown future date, if all those BEV's connect up to the national grid , hopefully they will have better contingency plans. Or there will be so many off shore windfarms we won't have room to paddle our feet in the sea!! or we will all have our own back garden wind generator. Also what about the people who cannot charge at home, because they live in inner city areas with the usual car parking problems, you would need an awfully long cable!!So until the infrastructure is put in place, properly, not piecemeal. I think BEV's are a long way from replacing ICE power for the vast majority of the motoring public.

If it looks right, fits ok and does the job, £17.05 would be the one for me. You quite often find a lot of consumables like filters are all made in the same factory and given different manufactures labels. Even a proper Lexus one will be made by someone else and then boxed up for Lexus.

Hi everyone , I've recently replaced the centre section on my IS250.It came all in one piece complete with the afore mentioned cats, off ebay. Cost was £397, supplied by a motor factors in Bilston West Midlands. If I remember correctly it was a Euroflo system. Had it fitted locally at exhaust specialists at cost of £160 including new bolts and gaskets,they said it was one of the most difficult exhausts they have fitted. They had to cut every nut and bolt off with cutting disc. I'm glad I decided not to DIY and I was a maintenance Tech / Engineer all my working life, but at 73 you do eventually have to draw the line somewhere . John

I know i'm coming in to this topic a bit late, but a number of years ago, one of the motoring organizations did a report on the relative cost of car ownership. When applied to the used car section, the conclusion was overall it was cheaper to maintain and repair than spend out on another used car. Though this just looks at car ownership in a narrow financial way, and may no longer be valid when the cost of major power train components is taken into account. Even so £1000 or so on a s/h transmission is a lot less than changing you car for one of unknown provenance. At least it is sometimes better the devil you know!!

Hi Ahmed I would think the 10/60 oil is far to thick for use in our engines. The manual states 5W.30 or 0W.30. You could possibly use a very small amount to top up a very low oil level, but I would not use more than about 0.25 ltr, any more would risk thickening the oil too much, but in an emergency any oil is better than no oil, but changed to the proper grade as soon as.

I understand about the fuel differences, but reading posts on the US Lexus forum, quite a large proportion of owners run their cars on what they call regular gas. one result could be the ECU detects knocking, pinging as we used to call it when we had points and distributors, and retards the ignition. This could result in all sorts of problems. For example. to obtain the same performance, the driver would compensate by using a heavier right foot and therefor increasing combustion chamber temps. and because of more piston blowby increase crankcase pressure, resulting in more oil laden fumes entering the inlet manifold via the PCV . I know this could all be very hypothetical, but there must be some reason for the valve coking up problems they have over there, which you don't seem to hear of in Europe.

Linas, I tend to agree with you. This seems to be a bit of a problem in the USA, presumably, because of lower octane fuel used over there. but they seem to run their cars to much higher mileages than we do . 200k + looks to be quite normal, and Lexus have sold a lot more cars in the US ,so the law of averages mean more reports of valve problems. My IS250 has done 112k and is running well,( there now i've jinxed it,).So I think i'll sit on the fence s bit longer. At least until the end of this hateful pandemic and warmer weather. Stay safe everyone. Johnbiker7

Ladies and Gentlemen, I don't wish to open a "can of worms " but what is the consensus of opinion regarding oil catch cans and will we ever need them. johnbiker7

Hello all It is not very often that I put the proverbial pen to paper, but ,after 54 years as a mechanical engineer, most of those years being involved in manufacturing machine maintenance. I have worked for some companies who would allow machines to run till they broke, and others who had P.P.M system (planned preventative maintenance). It was my experience that fewer unplanned breakdowns happened, if one did the right thing before the machine / gearbox/engine, expired in a cloud of smoke. So in my opinion it is best to do all we can to prevent unwanted breakdowns, and if that means, changing the transmission fluid on a regular basis go for it. Sealed for life, is very tenuous and quite ambiguous, especially when applied to a system with friction materials. As these clutch faces wear, because they will, the friction material will contaminate the fluid, and when one takes into consideration heat and shearing forces on the fluid/oil. To finally get off my soapbox I would say change it, and to practice what I preach I had mine done six months ago, as preventative maintenance.

Hi Sundance, by a strange coincidence, I'm looking to fit a towbar to my IS250.I think we need to talk before you put it on ebay. John

Hi all complete newby here! I need a towbar for my IS250 ,can't get one anywhere because of covid.So if any kind person has one ,please let me know.