Petron launches Euro 4-compliant gas

**cardict** · June 25th, 2013 11:32 AM

Just this morning from the Phil star,a reliable source working for shell stated that a gasoline reading of Ron 91 is less.he said that it is 90.6 to90.9 being round up to 91 octane,in the long run your engine will knock .so to avoid this he mix his 91 with a 95 octane to a have aright ratio.

**Retz** · June 25th, 2013 11:35 AM

^

It should be no problem imo if your car minimum octane requirement is at 91.

**JohnM** · June 25th, 2013 11:38 AM

Originally Posted by cardict

Just this morning from the Phil star,a reliable source working for shell stated that a gasoline reading of Ron 91 is less.he said that it is 90.6 to90.9 being round up to 91 octane,in the long run your engine will knock .so to avoid this he mix his 91 with a 95 octane to a have aright ratio.

Why not go 95 na lang? At 1.50 to 2.00 pesos diff per liter 80 pesos lang diff per full tank (40+ liters) ng compact car.

**Retz** · June 25th, 2013 11:48 AM

^

or 93 RON Xtra unleaded pwede din.

**cardict** · June 25th, 2013 11:54 AM

Originally Posted by Retz

^

It should be no problem imo if your car minimum octane requirement is at 91.

Yes sir retz,but the point of the man is yun daw 91 octane is less,it should be 91.0 and less than that will make your engine knock
*john,don't know what's he's up to,maybe getting in between 91 and 95 is better for his car

**Retz** · June 25th, 2013 11:57 AM

^

hindi naman kasi exacto yan sir ni round off naman talaga ung 91 RON. just a small difference it doesn't really matter imo.

**JohnM** · June 25th, 2013 11:58 AM

Originally Posted by cardict

*john,don't know what's he's up to,maybe getting in between 91 and 95 is better for his car

If it's fuel-injected the ECU will adjust within a set range. Go below that range and the engine knocks. Go above that and you're just burning money.

Baka carb sya at sakto na ang timing nya for 93

**cardict** · June 25th, 2013 12:07 PM

Originally Posted by JohnM

If it's fuel-injected the ECU will adjust within a set range. Go below that range and the engine knocks. Go above that and you're just burning money.

Baka carb sya at sakto na ang timing nya for 93

Siguro nga sir JohnM,di naman nya sinabi the reason behind

**jut703** · June 25th, 2013 12:40 PM

Originally Posted by cardict

Just this morning from the Phil star,a reliable source working for shell stated that a gasoline reading of Ron 91 is less.he said that it is 90.6 to90.9 being round up to 91 octane,in the long run your engine will knock .so to avoid this he mix his 91 with a 95 octane to a have aright ratio.

Knocking isn't a chronic problem that takes a long time to surface. The moment you use fuel that burns quicker than what your engine requires, it will knock. Likewise, once you change to a compliant fuel, the knocking should vanish.

It's not as if oil companies are cutting corners in octane to save on costs or anything. The additional cost of going from 91 to 93 is actually negligible, and the reason why everyone's mainstream unleaded is on RON 91 now is because that's what the law mandates.

**uls** · June 25th, 2013 12:48 PM

Originally Posted by cardict

Just this morning from the Phil star,a reliable source working for shell stated that a gasoline reading of Ron 91 is less.he said that it is 90.6 to90.9 being round up to 91 octane,in the long run your engine will knock .so to avoid this he mix his 91 with a 95 octane to a have aright ratio.

knocking is not something that develops in the long run

knocking happens even in new cars when bad fuel is used