Question about 1995 Volvo 850
This is a wide range of fuel types. Minimum Octane level to run decent is normally 87. Up in the northern areas and hilly states I've seen this a little lower. Typically your choices are 87 octane, 89 octane and 93 octane. I recommend using the 89 octane or mid grade to get the best mileage and consistent performance from the vehicle. You will get better mileage from the higher 93 octane or Premium but this is off set by the increased soot and build up over time and the mileage isn't that much better to justify the cost between the Mid and Premium grade fuels.
Posted on Aug 03, 2010
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Posted on Jan 02, 2017
recommended is just that... a suggestion. most cars will run just fine on regular gas although you may notice a difference from using premium all the time. if you still have the owners manual it should tell you.
Posted on Dec 16, 2008
Well, of course premium is HIGHLY recommended, but it is not necessary.
You can use regular grade in your engine and it will not harm it at all. Modern engine management systems have knock sensors that detect lower grade fuel and make the necessary adjustments to your timing and fuel delivery systems.
All you will notice is slightly slower acceleration and a slight drop in engine horsepower.
Hope this helps...
Posted on Mar 23, 2009
yes u can but you will loose performance and fuel mileage, it will really not be worth the few cents more you pay, if you use the midgrade 89 octane that is a better choice.
Posted on Sep 29, 2009
It can yes.
Higher octane fuels are used because they are more stable than lower octane fuel.
Low octane fuel is more likely to pre-detenate at high engine temps
Your cx7 has a high compression engine, meaning it compresses the air probably 10.5 to 11.5 times. This generates a lot of heat. Using a lower octane fuel will likely ignite before the engine has completed it up word compression stroke.
I would not advise using a low octane fuel. You can however use the mid octane fuel and you should be fine. Test it out. If it is hotter then 85 degree out constantly i would suggest not using the mid octane fuel
Posted on Jul 02, 2010
You can use which ever grade of gas you desire or can afford, but the premium will give you little better performance (more horsepower). Regular shouldn't cause engine ping, but if you do run regular and you do get a ping just add a bottle of octane booster to the next fill up.
Posted on Jul 25, 2010
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