I have a 1996 GMC Sierra with a 5.7 L so far I have used the injector cleaner, the oil stabilizer, and the Transmission Fix i am amazed at how much difference it has made just wondered if anyone else had any stories good or bad
http://www.lucasoil.com/
I use their injector cleaner in all my cars. I switched to them a while back after a friend recommended it and I've been very happy.
I haven't tried their other products yet... but I plan to.![]()
2007 Silverado LT3 1500 2WD Crew Cab, Classic Body Style.
Vortec 5.3L V8 Flex Fuel. Fully Loaded, All Leather.
Leveled with 3.5" Fabtech spindles, 1" rear blocks.
My trans was going, for about 3 months, every now and again, it would lock up but I always managed to get it to settle down and then a fter a long drive it went - I already had the Lucas in my turck stored away unopened and was going to put it but my mechanic said no.
Well I was so far away, I put it in anyway, without draining the other stuff - the tranny unlocked, the noise went away, and I kept on driving it for another 9 more months.
I only wished I had put it in there, when I first had a tranny problem - instead I drove it for thee more months and probably did a lot of damage in that time that would have been mitigated by the Lucas.
The stuff works.
Now I have a differential/axle that is about to go and wish I had done the same with that.
As for the tranny, I switched it out with a Jasper, because it was a 460 LE, havent had a problem since and my rig is always overloaded.


I've had good luck with Sta-Bil & Sea Foam
1988 Chevy C-3500 2wd (no pic)
350 c.i. 5.7 L Stock Block, 4 Bolt Mains
L-31 Vortec Heads, Edelbrock Cam & Intake,
Holley 650, Flowtech Headers, Magnaflow exh.
Jet Trans 700R4, B&M Ratchet, 4:10 gears,
3" susp. lift kit "shadetree"
No rev limiter, No speed limiter lol
I believe in Sea Foam for everything Oil and Fuel related. Nothing beats it. However, when it comes to the transmission fluid, I changed the fluid in my pan, added new fluid and dumped a bottle of Lucas Oil Transmission fix in and it improved shifting tremendously! Almost completely eliminated the harsh 1-2 shift at slow acceleration although it still does it from time to time.
SEAFOAM, I PUT THAT @#!$ IN EVERYTHING!
2004 Silverado LS 5.3L Z71 Crew Cab
200,000+ km
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