lbslocal69 Posted January 26, 2008 Report Share Posted January 26, 2008 2004 silverado SS 6.0L AWD recommended fuel 93 what do u guys all think about..... Using regular gas instead of 93? switching from regular to super off and on? Is this going to be a problem with running my truck engine? Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted January 26, 2008 Report Share Posted January 26, 2008 dude just use the recommended fuel.........tell me what you really plan on buying with the extra $4 you save for pumping non-premium gas ?! Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted January 26, 2008 Report Share Posted January 26, 2008 Using anything lower then 91 Octane will cause detonation and pinging which = lower gas mileage. These trucks call for high octane for a reason, 10:1 compression. The few dollars you'll save isn't worth it. Quote Link to comment Share on other sites More sharing options...
FireRescueSS Posted January 26, 2008 Report Share Posted January 26, 2008 I tried using regular fuel at one point, ended up having to replace alot of items in the fuel system... not sure if it's connected or not, but I ALWAYS use High Octane. I did noitce a drop in throttle response on the cheap shit too, so just do what the truck wants... the good stuff. Quote Link to comment Share on other sites More sharing options...
yttaf Posted January 26, 2008 Report Share Posted January 26, 2008 I used to run 89 octane in my SS for quite a while with no problems. No pinging or anything. Now I run 91 octane. Didn't notice much difference other than maybe 1-2 mpg better on the highway. 1 Quote Link to comment Share on other sites More sharing options...
Simon Posted January 26, 2008 Report Share Posted January 26, 2008 I fill her up with 94 octane all the time. I can honestly say that I feel the extra dollars! The truck moves a lot more. The truck is supposed to run on 91 minimum. Quote Link to comment Share on other sites More sharing options...
gixxerrider Posted January 26, 2008 Report Share Posted January 26, 2008 I use 89 or better till I get my tune. I use 89 when i do long distance drives. VA to MA or VA to IL Quote Link to comment Share on other sites More sharing options...
KissMySilvSS Posted January 26, 2008 Report Share Posted January 26, 2008 If you think about it, its really only another what $2-$4 at most to go 93 instead of 87. Its safe insurance for any vehicle. Quote Link to comment Share on other sites More sharing options...
Drew30 Posted January 26, 2008 Report Share Posted January 26, 2008 Using anything lower then 91 Octane will cause detonation and pinging which = lower gas mileage. These trucks call for high octane for a reason, 10:1 compression. The few dollars you'll save isn't worth it. ^thats not totally true, the ECM's on GM's can retard timing if there is detonation... but what's the point of running 87 octane, you get worse fuel eco and ur truck will be so mapped down you might as well be driving a 1500 with a V6.. a guy i work with has a TBSS and on 87 octane it runs like my gf's stock v6 Trailblazer.. it totally defeats the purpose Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted January 26, 2008 Report Share Posted January 26, 2008 bottom line is put the damn gas that is recommended for any car/truck and if $4 is what you want to save at the pump then buy a damn toyota or honda. . . . . . . . Quote Link to comment Share on other sites More sharing options...
Black2003SS Posted January 26, 2008 Report Share Posted January 26, 2008 I agree, if the premium fuel costs are too much, you should have considered a 5.3L Z71 or something because those can run on regular fuel. Running lower octane will not destroy the motor, but it will reduce the whole purpose and power of the truck. You can lose 30-50hp due to timing reduction from detonation. Quote Link to comment Share on other sites More sharing options...
NTMD8R_SS Posted January 26, 2008 Report Share Posted January 26, 2008 Poor guy every topic he starts he gets slammed. But yeah use the best octane u can get and since a few months ago i only buy my gas from chevron. Quote Link to comment Share on other sites More sharing options...
smoke03 Posted January 26, 2008 Report Share Posted January 26, 2008 use 93...its so much better for your motor and fuel system and when you get a tune you'll prolly have to use the 93 anyway Quote Link to comment Share on other sites More sharing options...
yttaf Posted January 27, 2008 Report Share Posted January 27, 2008 well I know for here & some other parts that we cannot come by 93 octane!!! No one offers it. There is only 2 gas stations within 100 miles of me that carry 91 octane, so it's not like we always have the option to run it. Quote Link to comment Share on other sites More sharing options...
Loeryder Posted February 18, 2008 Report Share Posted February 18, 2008 Funny this comes up recently. My truck was running generally shitty and knocking under WOT so I was complaining about it to the wife over the weekend. Had new plugs and wires to put on it anyways so I went ahead and did those. Took it out for a spin, still pinging under WOT. I came in pissed and toss my keys, Wife asks whats wrong, I tell her the truck is pinging and dunno why. She asks what gas I was running. (she knows we run premium in turbo cars for deto). I tell her I always run 91 or better.... long silence She kind cringes... She filled it with 87 thinking she was being nice! Come to find out she has filled it with 87 a few times now. grrrrrr. I remind her that when the STI motor goes in her subie she better NOT FORGET it takes 93! 3/4 tank to go.... ugh. Quote Link to comment Share on other sites More sharing options...
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