I got a 1991 S-10 Blazer 4x4 with a 4.3 V6 TBI in it. I just today hit 93,000 miles. I have heard good and bad things about the oil additive RESTORE (the stuff that looks like it is in a Coors light can). What are your opinions and should I try it out or not?? Thanks
Just hope RESTORE isn't as watery as Coors Light! Personally, I haven't used that particular product but have used GUNK motor flush. I think its kerosene based or something and seems to remove alot of deposits. That combined with something like Prolong is what my friends swear by.
Don't do it, years ago my mom tried the stuff and it doesn't do anything except kill the motor, about the only stuff that really works is stp if you don't change your oil, and transx for automatic transmission tune up, there are a few others but that is all I can think of right now, hope this helps.
Is there anything wrong with the engine now? Excessive oil consumption? Lack of power?
Do a compression test. Write numbers for each cylinder. Determine if they're all within 10%.
If there are problems, then we'll help diagnose them.
Don't ever use any of those additives. The metal particles they claim will bond to the cylinder walls will really just plug the oil filter, and/or oil passages. Same with products with teflon. Neither belong in your engine, so avoid them like the plague...
I am starting to notice now that I do not have the same amount of power I once did, but that is expected after 93,000 miles. You have convinced me NOT to try that stuff, because I have read that elsewhere also. What would you reccomend doing to try to restore some of the lost horses??? Thanks...
When was the last time you had a tune up? Plugs, wires, cap, rotor, oil change, etc... Have you ran any fuel injector/fuel system cleaner through it lately? You have a few options. Since it is fuel injected you can take it some places (or get these cans of stuff) where they will disconnect your fuel line, and hook a can of cleaner up to where the fuel line hooks, start the engine and let it run until the can is empty (about 15 minutes if I recall). This supposedly works awesome although I don't remember who makes the stuff. The other type of cleaner you can get is just the stuff you dump into your gas tank. I prefer Berryman's B12 chem tool. Seems to work the best of the ones I've tried before.
You might also want to change your differential, transfer case and transmission fluids to synthetics, which flow better and can gain a few rear wheel horseypower (as well as making those components last longer). Synthetic oil can help in the engine (if you have no leaks since synthetic molecules are smaller thus easier to leak out. K&N airfilter helps a little. I would bet if you do these things your truck will pick up a bit of power... Make sure the timing's set right but I can't tell you how to do that since I don't have an injected one so I don't know how to set the timing on a computer model.
I got a K&N, noticeable difference. I will run some fuel injector cleaner through it, and when I get the chance get the tranny and differential fluids changed....I know that hasnt been done in ages. Thanks for the tip....