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UMW Toyota Announces All Toyota & Lexus Vehicles Suitable For RON95 Use

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UMW Toyota Motor Sdn Bhd, the exclusive distributor of Toyota and Lexus vehicles in Malaysia, would like to announce that RON95 petrol is suitable for use in all petrol engine Toyota and Lexus vehicles sold officially by the company. Owners of these vehicles who are currently using RON97 petrol will also be able to use RON95 without any negative side effect such as engine damage or performance loss.

For further reference, Toyota and Lexus owners will be able to check their vehicle’s minimum RON requirement by referring to the specification section of their vehicle’s owner’s manual.

L
  • L
    lonely driver
  • Sep 5, 2009
honda has been announced this last week to clarifies the concern of the honda driver... dull toyota!
Z
  • Z
    zain
  • Sep 5, 2009
Even before the announcement, there are thousands of toyota owners already knew this. Including me.

UMW is so slow
W
  • W
    where is ron97?
  • Sep 5, 2009
so.. umw... caldina gt4 use what fuel???
D
  • D
    DC1
  • Sep 5, 2009
no power loss....i do wonder if they are pressured into announcing as such..so far most car I have seen using ron95 have had power loss with retard timing by ecu to control knocking
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    teo1957
  • Sep 5, 2009
I've never seen a Caldina sold by UMW Toyota. Be it a GT4 or ZT.

If Honda Malaysia said that Civic Type R's minimum is RON91, but 'recommended' is RON97, then it's knock sensor should be able to self-adjust ignition timing to suit RON95.

If it can't, then it shouldn't be called a knock sensor.

If cars are not equipped with self-adjusting ignition timing, then why can they use fuels of 2 differing RON levels (RON97 and V-Power)?
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  • G
    Gerard
  • Sep 5, 2009
RON 97 and RON 95 ... I'm sure you will experience power loss. It is just like the difference between RON99 (V-Power) and RON97. You'll most definitely feel that V-Power gives you more power.

Actually most modern cars also has the so called "knocking sensor", not just Hondas. Just that performance cars, especially turbo cars is recommended to use a higher RON fuel because of its compression ratio. If these cars uses a lower RON (lighter fuel), the engine cycle would combust earlier than when using a higher RON, which creates knocking. If the ECU of a performance car tries to adjust, I think its difficult because I'm sure combustion rate of any engine is fixed due to its physical layout.

In terms of fuel economical, I would say it depends. If you're driving a car which is already underpowered, I would say it won't be as economical compared to a higher RON. If your vehicle is not underpowered, it should save you a little
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  • P
    pelams
  • Sep 6, 2009
umw doesnt officially sell celica n caldina in malaysia.....so cn both of d cars use ron95?
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  • S
    sta
  • Sep 7, 2009
recond cars frm japan should be tuned to used their fuel (not sure ron 98 or 99)
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  • A
    alvin
  • Sep 7, 2009
RON95 can be used but they never mentioned any slow response in performance. RON97 is still the way to go
C
  • C
    captain fast
  • Sep 7, 2009
Most normal compression NA engines can take ron 95 without much problem...anyways to clear some air, v-power is actually just ron 97 with more additives...
4
  • 4
    4AGE
  • Sep 8, 2009
How about 4AGE 20V ?
Compression ratio 11:1
Knock~ Knock~ Knock~
4