Enthusiast
I have read so much about "dirty" fuel causing injector problems, that I statrted using a fuel supplement (performance plus brand). Have run 3 tanks w/ additive so far, and my mileage has dropped from 14 to 12.8Has any one else experienced this? I always get my fuel from same place. Am not doing anything different than before (except the additive), so what gives? I just changed my fuel filter, so that should not be an issue. What gives? Any thoughts? Thanks, DinoMax
02 2500 LT CC 4X4 SB Dmax/Ally<br />6\" Superlift 315/75/16 BFG\'s <br />4\" Exh. Predator 1.07 <br />Quadzilla Digital EGT/Boost/Oil temp in O/H Console<br />MagHytec diff cover Tube Grill Nerf Bars Toolbox Rhino Liner<br /> <a href=\"http://home.bellsouth.net/p/PWP-dino\" target=\"_blank\">http://home.bellsouth.net/p/PWP-dino</a>
Enthusiast
A friend of mine told me the same thing. He was using the Rotella additive. I have been using the FPPF Total Power cut 50/50 with the cetane boost at about 6 oz a tank and get a little better mileage. I think.
2002 2500HD CC D/A <br />Post Mega filt., Lighted TTT mirrors, K&N Air Filt, Bilstein <br />B&W Gooseneck/5th, Oil guard, <br />Tekonsha Prodigy, Lift Pump, Line-x<br />Air Lift Bags & Load Controller II <br />Pics. <a href=\"http://community.webshots.com/user/abear130\" target=\"_blank\">http://community.webshots.com/user/abear130</a>
Enthusiast
I too read up on additives for months before finally deciding to use one (stanadyne).
I watched very closely over the last month, and my mileage has stayed exactly the same as before I used it.
I had heard so many stories about it making mpg better by 1 to 2 mpg I was a little suprised that it didn't change.
<b>2003 GMC 2500HD D/A SLT 4x4 CC LB! (Polo Green)</b><br /><a href=\"http://community.webshots.com/album/53238125hQAlYl\" target=\"_blank\"><i>PICS HERE</i></a>
I use an additive every 3 or 4 tank fulls. Yes I have noticed the mpg decrease when used.
Enthusiast
A lot of fuel additives do not have cetane, there is a popular one sold in Canada at most of the truck stops but has no cetane, however this manufacturer clames his product is immitated by the leading brands.
good luck
GMC 2002 DURAMAX, SLT, EXCAB SHORT BOX 2500HD, 4X4, AUTO
ACCESS TONNEAU COVER, 3" STAINLESS TUBE STEPS
JORDAN BRAKE CONTROLLER
34ft 10,000 lb TRAILER, 50 GAL TRANSFERE FLOW TANK (total 76 gals)
Enthusiast
That doesn't seem right. I just tanked up a little bit ago and did the math. I gained close to 3MPG! I'm sure my math is right. This is my first tank with Performance, that a good buddy o' mine hooked me up with. I dumped in almost half the bottle, a little more than needed, after the tank was full. I'll keep track this time around and see, if it stays high. Just a little side note, this is one of the only times I've made it over a week on one tank. The other times it was in the shop with fuse probs. Seems to help to me.
TJ
03 GMC Sierra 2500HD D/A CC SB
Enthusiast
Thanks for the info, guys. The Performance Plus additive I am using says it does improve cetane #'s. Guess I'll just have to try another brand and see what happens with my MPG then. DinoMax
02 2500 LT CC 4X4 SB Dmax/Ally<br />6\" Superlift 315/75/16 BFG\'s <br />4\" Exh. Predator 1.07 <br />Quadzilla Digital EGT/Boost/Oil temp in O/H Console<br />MagHytec diff cover Tube Grill Nerf Bars Toolbox Rhino Liner<br /> <a href=\"http://home.bellsouth.net/p/PWP-dino\" target=\"_blank\">http://home.bellsouth.net/p/PWP-dino</a>
Newbie
I've been using Standyne performance formula in my truck and I noticed about 1 MPG increase. It could have been partly do to normal break in though I started using it at about 2000 miles.
2002 D/A Ext. cab S/B, Nitto tires,Bilstein shocks,4\" exhaust,K&N filter,JK light harness,Acess roll-up cover,Ziebart Gold Pkg.,Alpine stereo W/XM, Voyager brake controller,Katzkin leather seat covers,S.S. nerf bars,Husky mats.
I've been using Standyne performance also. Engine runs smoother and quiter and milage increase seems to run from .5 to 1 mpg. Makes it free to run, so any other benefits are a bonus.
I've been running the Primrose 405 recommended by George Morrison and availabe at avlube.com.
I'm at about 16,000 miles and the truck seems to be running smoother and getting stronger all the time.
This could be a result of the Primrose combined with the CAT 1R 0749 pre-OEM filtration as well, plus, still breaking-in.
Couldn't be more satisfied.
Enthusiast
I also been using Stanydyne, probably about 15,000 miles now. Only using about 4 oz./fill in summer. Maybe 6-8oz./fill in winter. Depends how fussy I get pouring it out. Have never seen a huge change (within 1 mpg) either way with or without additive.
2002 Silverado K2500HD DMax/ZF6 LS<br />Reg Cab, LB, G80, Fumoto, <br />DeeZee Blacktread cab/box boards<br />Fisher M/M 2<br />11,000 mi. 10/03/02<br />\'00 Big Bear, 27\" Mud-Bugs, Mac-made toolbox/rollbar<p>So close to stock it ain\'t even funny!
Enthusiast
I can always tell when i forget to put in the Racor Fuel conditioner in the tank. I always get better mileage when i put the conditioner in the tank.
2002 D\\A CC SB LS 4X4, Isspro Gauges, Hot Juice, AFE Stage 2, TTT Mirrors, Escort Solo S2 and ZR3 Lazer Jammer, T-304 Stainless Steel Nerf Bars and Grill Guard, 2\" Keyways and 1\" blocks in the rear, Kennedy Headlight Booster, Banks Monster Exhaust (Straight Piped) and BigHead Wastegate Actuator, Rancho RS9000X W\\In-Cab Remote, Remote Dual Bypass System, Mega Filter, Totally Redone Stereo System- Alpine 7998\\F540\\M500\\H700(5.1 Sound System)\\S680(DVD)\\XM\\Mobile Hub- Focal\\165K(rear)\\165K2 front)- Two VizuaLogic Headrest Monitors with four wireless headphones - Image Dynamics IDQ 10\" subs in a Probox under the rear seats, CompuStar Remote Starter-Pager-Alarm, 2002 Forest River Wildcat Travel Trailer (Loaded 8000#), 2000 Skeeter ZX185 W/Yamaha 150 (Team Skeeter Package), 2001 Volvo S60 T5 (Wife\'s Car)
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