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> Which Gas Should V40 Uses? 87, 89, Or 93?, which grade of gas is recommanded for V4
2000V40InFairfax
post Aug 14 2006, 03:01 PM
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I plan to buy a V40. What grade gas is recommended by Volvo for V40?
Regular 87, or mid-grade 89, or premium 93?
Thanks!
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Black Beauty T4
post Aug 19 2006, 06:41 AM
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Drives: 2002 Volvo V40 T4 2.0 Sport Lux



I can only reply from the viewpoint of European spec. engines. The principle probably holds true for US spec. but see your owner's handbook for confirmation.

In Europe most Volvo petrol engines are designed to run on 95 RON gas so what you describe as "mid-grade 89" would be closest to this. However, for the 200 bhp T4 version (not exported to US) Volvo recommend 98 RON gas (US premium 93 AKI).

Turbocharged engines can be more prone to pre-ignition due to higher temperatures, so personally I certainly wouldn't use less than US 89 AKI in a tubocharged engine, but do bear in mind that US 93 AKI is the least prone to pre-ignition of the 3 available there, so if your car's engine is the 1.9 Turbo version, then I'd use US Premium 93 AKI at every opportunity. This may well produce other benefits such as improved fuel economy and engine power after the first couple of tanks.

The engine is fitted with a knock sensor to adjust the ignition timing to allow for octane variations, but this will not prevent pre-ignition of low octane gas in a turbocharged engine, which can cause serious/expensive damage.

Hope this helps.

BB
:beer:
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Sirius
post Jan 31 2007, 10:30 PM
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in the USA or Canada , you should use 91 octane gaz minimum . I sometimes use some gaz-ethanol 89 octane + half 91 , but never the 89 alone.
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