I have a 91 gmc sierra with a 4.3 engine. It has 95000 miles and runs good. This engine always seemed to be dirty or sooty with carbon buildup inside the pcv valve and it looks a little dirty inside the valve cover. This engine does not leak oil and i changed the oil every 4-5000 miles. If i rx the engine im concerned that it may begin to leak from the rear seal as a few people have reported. I do wonder if there is a bunch of crud built up inside the motor and ringpacks that would benefit the engine if i remove it. Hmm any ideas?
Should i auto rx an engine that runs good at 95k
- Thread starter Locomotive
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It seems that with Auto-RX , or with anything that really cleans the engine, there is a chance of removing deposits that may be giving a false seal. I am using Auto-RX as we write, in both my vehicles. I am trying to keep the seals from leaking in my Sentra, but I understand your concerns. If I have a false seal hiding a damaged seal, it means replacement when it is free of deposits. Frank made it clear, it was my decision. So far, no problem, but only 500 miles into the cleaning phase. I am trying to clean the ring pack in my other car, a Saturn. Gummed up oil control rings cause it to use oil, so I am told. Will see if Auto-Rx reduces consumption. At the same time I am using Fuel Power. Both vehicles are running smooth. On my second tank with Fuel Power. This seems to be a good product. Time will tell the extent of the benefits. If your seals are in good shape, Auto-RX should be safe to use. If they are torn, etc., you are right, they may leak more. Seems to be a personal choice. There is a risk involved.
I havent read too much about lube control or fuel power. It seems that most people on this forum use auto rx. Im not too sure about extending conventional oil to 10,000 mile changes but if your product removes carbon and makes an engine improve in gas mileage i will consider it.
Locomotive,
I can appreciate your hesitancy. Our products are antioxidants and keep oil/fuel in good shape therefore the extended drains. Oil companies have done a good job convincing people they must change oil at 3,000 miles, but if you are able to keep water out and reduce oxidation (which cause the carbon and varnish to form) your oil will be fine.
Odis has reports were the UOA is better than the VOA, they are simply awesome products.
A simple test you can do is rub your finger in you tail pipe, if you get black soot on your finger you need LC/FP. Just think if this soot is in your tail pipe what's up inside the engine?
Wipe you finger in Odis truck and you won't get even a slight smudge of soot....nothing
Jeff
I can appreciate your hesitancy. Our products are antioxidants and keep oil/fuel in good shape therefore the extended drains. Oil companies have done a good job convincing people they must change oil at 3,000 miles, but if you are able to keep water out and reduce oxidation (which cause the carbon and varnish to form) your oil will be fine.
Odis has reports were the UOA is better than the VOA, they are simply awesome products.
A simple test you can do is rub your finger in you tail pipe, if you get black soot on your finger you need LC/FP. Just think if this soot is in your tail pipe what's up inside the engine?
Wipe you finger in Odis truck and you won't get even a slight smudge of soot....nothing
Jeff
Why not try it and get a used oil analysis at your normal change interval and see how much life it left?
I'm trying it on Mobil 1 oil this time and will compare results with my previous 6,000 mile used oil analysis. It won't be conclusive because other things have changed, but it will be another indication.
JHZR2
Staff member
I used auto-rx in my bmw with ~93k. I noticed no difference operationally, but the engine is specced to take a 15w40 oil, so HDEOs are typically used.
It did apparently fix a slight oil leak that I had been noticing.
JMH
It did apparently fix a slight oil leak that I had been noticing.
JMH
"If it aint broke" Its so hard to resist tryint to clean the engine up, maybe regain some performance, etc... I would say what would it cost to replace a seal if it should start leaking? If you have the money then go ahead, if you dont, dont mess with success.
Loco,
I did an Auto-Rx treatment in my Volvo with about 100,000 miles. It was running well before, and now it runs even better. It runs smoother, peppier, and the turbo boost gauge climbs faster when I mash the go-pedal.
Ken
I did an Auto-Rx treatment in my Volvo with about 100,000 miles. It was running well before, and now it runs even better. It runs smoother, peppier, and the turbo boost gauge climbs faster when I mash the go-pedal.
Ken
Do it! You won't be dissapointed IMO.
I'm running AutoRx in my 3.8l Regal that has 110k miles on it. The car ran pretty good before using it and really, I had no complaints. I was getting 27-28 mpg highway and 22-23 city/highway combined. I've got 1,300 miles on the oil w/ autorx in it and I guess if there is one thing I've noticed is that the engine seems to be quieter since putting the treatment in. I will change the oil for the rinsing phase in the next day or two. I won't run a second dose as I don't think the car needs it. I also am using a bottle of AutoRX in my son's 1994 S-10 pickup(4.3l), 58,000 miles. He only has about 400 miles on it so nothing noticable yet. Will post results in the AutoRX thread when both are complete.
What ever happened to diagnosis first then fix the problem? Why not do a compression test to see if you have a problem that needs fixing? Are you MPG reading going downhill? Is the engine full of varnish and sludge and if so is it causing a problem?
How about we get a problem first and then develop a plan to fix it?
How about we get a problem first and then develop a plan to fix it?
I had a 1990 4.3 liter motor in an S-10. I alway changed oil at 3000 miles. This goes back a couple years and I was suspect of the product. So I added the ARX to fresh fill of oil. I was astounded as to how black the oil was with just 500 miles on the new oil. I ran ARX three times in my motor with no problem with seals. I even ran a full dose for 3000 miles with no problem. I do recommend that you follow the ARX directions though.
I did the AutoRx cleaning for vehicles with 100K or more. Started it in the mid 90K range.
I thought my Cherokee always ran fine, and it did, but I notice that it's quieter and there is a feeling of more power, or maybe I should say of less reluctance to use the power it has.
This may be AutoRx or it may be FP, or it may be both...or it may be my imagination.
But I like it....
I thought my Cherokee always ran fine, and it did, but I notice that it's quieter and there is a feeling of more power, or maybe I should say of less reluctance to use the power it has.
This may be AutoRx or it may be FP, or it may be both...or it may be my imagination.
But I like it....
"If it ain't broke don't fix it"
Um....ever heard of preventive maintance? Easier to keep something in good running shape than to try to fix it after it's broken.
"If it ain't broke don't let it break" would be a better mantra.
Um....ever heard of preventive maintance? Easier to keep something in good running shape than to try to fix it after it's broken.
"If it ain't broke don't let it break" would be a better mantra.
There is preventive maintanance, but it does not say anywhere in an owners manual to run AutoRx every 50K as preventive maintenance?????? I know some people are going to say "the manufacturer wants you to buy a new car blah blah blah" but really if you have a car that runs good and you are unsure if a product is going to clean a "False seal" and make a leak, then you really must ask yourself "Self, is this car worth dumping 1K dollars in engine work" or whatever to replace all these leaking seals?? just some common sense.
I think you're wasting your money on ARX.If it aint broke,why fix it? Ive been reading this forum until i'm blue in the face,about this elixir.I'll stop at that,but if I am challenged on my response you're gonna get alot more from me,but in a decent,nice response.
I am running AutoRx on my 114,000-mile pickup truck. On the other hand, I sold my '84 F150 4 years ago and it now has 240,000 miles on it. Runs great and has never seen AutoRx. Had Rislone the first 175,000 miles. But I bet it is a real sludge monster. Also, I imagine all that sludge coating helps make the engine run hotter.
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