All New 2013 Toyota Vios (3rd Gen)

**dr. d** · December 11th, 2014 03:20 AM

Originally Posted by LtAK

All my cars knock when using petron. Whats with petron considering RON rating is same with caltex and shell?

actually, i was about to ask, what's wrong with your car?

but seriously, is it just one petron station, or all petrons?
and is it just the low octane fuel, or is it also the premium higher octane fuel?

**jaggerx3** · December 11th, 2014 09:15 AM

Knocking ba eto? Hindi to cold start, actually kkatpos ko lang maghatid sa BGC nyan, with Aircon off idle iyan.

**dr. d** · December 11th, 2014 10:01 AM

Originally Posted by jaggerx3

Knocking ba eto? Hindi to cold start, actually kkatpos ko lang maghatid sa BGC nyan, with Aircon off idle iyan.

... doesn't sound like engine knock.. can it possibly be too large a valve lash?
engine knock sounds like a marble falling into a metal can, or onto the kulahang galbanisado or GI roof..

**rheathyurd** · December 11th, 2014 10:48 AM

Originally Posted by SneezyPepper

sir follow up question lang..

once na natanggal na yung upuan, yung sandalan ba tatanggalin by unscrewing the three bolts?

salamat ng marami

remove the 3 bolts first before pulling the backrest upward. mabusisi tlga magpalit ng seatcover

**rheathyurd** · December 11th, 2014 11:47 AM

Originally Posted by jaggerx3

Knocking ba eto? Hindi to cold start, actually kkatpos ko lang maghatid sa BGC nyan, with Aircon off idle iyan.

seems a normal engine sound for me. fuel knock happens when the car is running during low gears at low rpm usually when u shift to 2nd gear from 1st gear and when you step on the gas pedal while the rpm is low. knocking or the roleta sound is only noticed when you step on the gas pedal. and I think a driver with less driving experience won't notice it.
It's a different problem when you hear knocking while idling.

**harold13** · December 11th, 2014 01:21 PM

Try to change octane rating.

**jaggerx3** · December 11th, 2014 01:32 PM

95 octane fuel gamit ko. Total Excellium.
Wala namang pinagbago sa hatak yan lang problema ko, kind of noisy ang engine compared sa Toyota Revo na gas namin dati na halos di mo rinig andar ng makina pag idle.

**LtAK** · December 11th, 2014 05:27 PM

Originally Posted by dr. d

actually, i was about to ask, what's wrong with your car?

but seriously, is it just one petron station, or all petrons?
and is it just the low octane fuel, or is it also the premium higher octane fuel?

I use 91 ron (fuel save and silver) and all of my vehicles runs very well on caltex and shell. 91 ron from petron knocks the engine.

**ejdm** · December 11th, 2014 05:38 PM

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Hey guys, maayung hapon. My Silver is turning a month old this 15th. Just wanna say thank you for this forum for helping come up with a well informed decision for my 1st brand new car choice. I know there's a lot more to learn of our baby that's why I am eagerly back reading your thoughts. Keep them coming.

Just have one concern though which i know had been discussed already on this forum but i just forgot what page was that. About the "knocking sound on the dashboard", how was that resolved?