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Aaqz

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Posts posted by Aaqz

  1. n lexus is200 is NOT a 2 cycle or aviation engine??? can sum1 help .. i reali lackd knowledgeee.. as m looking at certain oils

    10w-40 semi and 5w-30 fully sythetic oils are both fine to use on the IS200- choice is yours.

    Don't mean to be funny mate, but is english not your first language? Can't make any sense of the txt talk above. 2 cycle or aviation engine- what are you going on about???

    loool ok... 1st of all thanks 4 ur advice.. il propli tak 10w-40 Mobil 1 as its cheaper..

    and the point i was making is that.. i was looking at this mobil1 oil and its specification ... n on thr it said it is not recommened for 2 cycle or aviation engine?? :S so i was wondering if it applys to the lexus??? :S:S i didnt get myself whn i read tht... n i apologise 4 dat previous comment lol =]

  2. also mentioned if the car has had semi synthetic all its life then switching to a fully synthetic can be damaging to the engine !?!?! would u guys agree?

    I found the answer to this in popular mechanics

    Early synthetics got a bad reputation for leaking. This was because, despite the claims of the oil manufacturers, the seal-swell characteristics of the new synthetics were different from those of the mineral oils they replaced. If the seal-swell rate was lower, the seals shrank and oil leaked from crankshaft seals and rocker cover seals. If the rate was higher, the seals swelled a little extra and the engine was tight. Then if the owner changed back to mineral oil, or added a quart when no synthetic was to be had, things got really bad. The crank seals had become worn, in their turgid state, and then relaxed. The valve cover seals were compressed when swelled, and when the different oil was added, everything leaked like, well, an old English sports car.

    Fortunately, the situation has improved; you should have no problem switching back and forth. Adding a quart of mineral oil to a crankcase full of synthetic will be fine. Read the fine print — a lot of the "synthetics" on the market are blends containing a substantial proportion of mineral oil.

    Hey.. I'm also looking to change my oil n ii also lacked knowledge & dont know much on this topic... but I'm looking to go 10w-40 semi synthetic living in London... is that ok :question:
    That will be fine but a fully synthetic oil will be better, especially if you do a lot of short trips.

    ok fully synthetic is betta.. buh wa if i stayd with semi synthetic it wnt do ne damage will it?? coz its cheaper n 2 b honest i onli drive d car lik twice a week...

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