SwedeSpeed - Volvo Performance Forum banner
1 - 13 of 13 Posts

·
Registered
Joined
·
651 Posts
Discussion Starter · #1 ·
<A HREF="http://new.volvocars.com/enewsletter/06/summer/p02.html" TARGET="_blank">http://new.volvocars.com/enews....html</A> Check out # 7...doesn't Volvo recommend premium for all of their engines? <IMG NAME="icon" SRC="http://www.vwvortex.com/zeroforum_graphics/screwy.gif" BORDER="0">
 

·
Registered
Joined
·
226 Posts
Re: Volvo's tips for saving gas (s40turbo585)

Premium fuel won't make any difference in non-turbo engines... at least I don't think it would. It certainly never has in my other cars. It only matters if the engine computer can take advantage of the higher octane by adjusting timing, etc. I guess that's exactly what they're saying.
 

·
Registered
Joined
·
651 Posts
Discussion Starter · #3 ·
Re: Volvo's tips for saving gas (GoBigRed)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>GoBigRed</b> »</i></TD></TR><TR><TD CLASS="quote">Premium fuel won't make any difference in non-turbo engines... at least I don't think it would. It certainly never has in my other cars. It only matters if the engine computer can take advantage of the higher octane by adjusting timing, etc. I guess that's exactly what they're saying.</TD></TR></TABLE><br>i just thought it was odd since they recommend premium for all their engines, even the n/a ones. Premium fuel can make a difference in non turbo engines, especially one's with high compression ratios. There are many n/a engines that require premium fuel.
 

·
Super Moderator
Joined
·
9,305 Posts
Re: Volvo's tips for saving gas (s40turbo585)

They <B>are </B>saying choose premium. The "right" octane is "right" there in the owner's manual. OTOH, the manual says you can use regular.<p>I haven't tried a few tanks of regular to compare in my car, but in our XC90 we get about 10% less mpg on AKI 87 from 93. Since the premium cost delta is only about 8% (20-25 cents in about $3), and the performance is better to boot, it's a no-brainer to go with 93.<p>Tom.
 

·
Registered
Joined
·
135 Posts
I like how #5 says "roll the windows down" and #9 says "roll the windows up." Ha ha!<p>I know it depends on the speed you're going whether the A/C or windows are better but it's still funny.
 

·
Registered
Joined
·
957 Posts
Re: (Crashy)

ACTUALLY..... I bet if We removed the top entirely and the windows, wind resistance AND weight would be reduced and MPG would improve.... <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0">
 

·
Registered
Joined
·
365 Posts
Re: Volvo's tips for saving gas (GoBigRed)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>GoBigRed</b> »</i></TD></TR><TR><TD CLASS="quote">Premium fuel won't make any difference in non-turbo engines... at least I don't think it would. </TD></TR></TABLE><p>Incorrect. It depends on the compression ratio and condition of the engine, as well as the computer's ability to advance/retard timing relative to detonation.
 

·
Registered
Joined
·
411 Posts
Re: (Crashy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Crashy</b> »</i></TD></TR><TR><TD CLASS="quote">I like how #5 says "roll the windows down" and #9 says "roll the windows up." Ha ha!<p>I know it depends on the speed you're going whether the A/C or windows are better but it's still funny.</TD></TR></TABLE><br>I thought the same thing! <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/confused.gif" BORDER="0">
 

·
Registered
Joined
·
651 Posts
Discussion Starter · #9 ·
Re: Volvo's tips for saving gas (tmtalpey)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>tmtalpey</b> »</i></TD></TR><TR><TD CLASS="quote">They <B>are </B>saying choose premium. The "right" octane is "right" there in the owner's manual. OTOH, the manual says you can use regular.<p>I haven't tried a few tanks of regular to compare in my car, but in our XC90 we get about 10% less mpg on AKI 87 from 93. Since the premium cost delta is only about 8% (20-25 cents in about $3), and the performance is better to boot, it's a no-brainer to go with 93.<p>Tom.</TD></TR></TABLE><p><B>Choose the right octane - Using premium (higher priced) fuel won't guarantee better performance, or better fuel efficiency. </B><p>Right, premium is the right octane, but then they pretty much contradict themselves by saying premium won't guarantee better performance or fuel efficiency, which is not true.<br>
 

·
Registered
Joined
·
7,600 Posts
Re: Volvo's tips for saving gas (s40turbo585)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>s40turbo585</b> »</i></TD></TR><TR><TD CLASS="quote"><p><B>Choose the right octane - Using premium (higher priced) fuel won't guarantee better performance, or better fuel efficiency. </B><p>Right, premium is the right octane, but then they pretty much contradict themselves by saying premium won't guarantee better performance or fuel efficiency, which is not true.<br></TD></TR></TABLE><p>They didn't contradict themselves at all. <p>They say "Choose the right octane for your vehicle". <p>Following their advice, I put 87 octane in my 10 year old Honda Civic and 91 octane in my 2005 Volvo, hence choosing the right fuel and not assuming that premium will get me better performance.<p>Where is the contradiction?<p>UKMatt
 

·
Registered
Joined
·
327 Posts
Re: Volvo's tips for saving gas (ukmatt)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>ukmatt</b> »</i></TD></TR><TR><TD CLASS="quote">They didn't contradict themselves at all. <p>They say "Choose the right octane for your vehicle". <p>Following their advice, I put 87 octane in my 10 year old Honda Civic and 91 octane in my 2005 Volvo, hence choosing the right fuel and not assuming that premium will get me better performance.<p>Where is the contradiction?<p>UKMatt</TD></TR></TABLE><p>EXACTLY! The same amount of BTU content in premium or regular unleaded means there should be no difference in fuel economy!<br>Why should there be just from the gas? ONLY if the engine computer is sensing ping/knock and starts to pull timing will the car get worse mileage with non premium fuel.<br>This is directly related to the drivers foot and whether he is going full throttle or not. Use low grade fuel in a turbo car and go medium to full throttle and you will have timing pulled, but go with moderate to light throttle and you will get good economy with either fuel and no need for the premium as you aren't going full throttle.<br>So it depends on the engine and the driving habits as to whether you can save money.
 

·
Registered
Joined
·
651 Posts
Discussion Starter · #12 ·
Re: Volvo's tips for saving gas (ukmatt)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>ukmatt</b> »</i></TD></TR><TR><TD CLASS="quote"><p>They didn't contradict themselves at all. <p>They say "Choose the right octane for your vehicle". <p>Following their advice, I put 87 octane in my 10 year old Honda Civic and 91 octane in my 2005 Volvo, hence choosing the right fuel and not assuming that premium will get me better performance.<p>Where is the contradiction?<p>UKMatt</TD></TR></TABLE><br>okay, it's not so much a contradiction, but poorly written. A lot of Volvo owners don't know that their cars recommend premium fuel(like some of my family members,people I see at gas stations, and those who don't read their owners manuals), since it doesn't say so on the gas flap, so when they get this email they think that the right octane is regular and assume that the phrase written after is to say that premium fuel is not necessary since it doesn't guarantee better performance or fuel economy. However, I use premium in my car and know that Volvo recommends premium, but I still read it as saying that premium fuel is not necessary, even if it is the right octane. Say Volvo wrote "Choose premium fuel" instead of the "choose the right octane", now would that entirely make sense, considering that their urging you to use premium, but then saying by doing so it won't guarantee better fuel economy or performance? I don't think I'm that far off in reading it like this.
 

·
Registered
Joined
·
3,952 Posts
Re: Volvo's tips for saving gas (s40turbo585)

yeah I was a little confused on the rolling of windows up and down to save energy. I think I'll just go with a new C70 and add a couple "turbonators" each one added will get you up to 31% better mileage and they are on sale now for about $50. so for like $200 , your car will get negative MPG figuares. just make sure , you don't start driving on a full take , otherwise after 100 miles it might flow over. <p><br>joking aside, I guess rolling windows down at low speeds less than 35 mph vs a/c and not having windows down at say highway speed vs using a/c makes since. this wind resistance concept is why many convertables obtain thier top speeds with top up. <br>
 
1 - 13 of 13 Posts
Top