synthetic oil
4th Gear Member
Joined: Sep 2006
Posts: 1,031
From:
RE: synthetic oil
ORIGINAL: Blowby01GT
okay to settle this thing i know first hand in my 01 GT i changed from conventional oil at 35k miles, to synthetic and i had a heck of a hard time it would stall, it would smoke, and it finally left me dead one day at work i had roll back come get it and it had pushed all the deposits that conventional oil has, and pushed them through my engine, Syntheic is only good from the very beginning miles i would say 10K and Under! Because it will push all the sludge and build up through the engine and cause break down on the deposits! Syntheic does this because it is a super clean oil! Stick to conventional oil! But thats Just me!
okay to settle this thing i know first hand in my 01 GT i changed from conventional oil at 35k miles, to synthetic and i had a heck of a hard time it would stall, it would smoke, and it finally left me dead one day at work i had roll back come get it and it had pushed all the deposits that conventional oil has, and pushed them through my engine, Syntheic is only good from the very beginning miles i would say 10K and Under! Because it will push all the sludge and build up through the engine and cause break down on the deposits! Syntheic does this because it is a super clean oil! Stick to conventional oil! But thats Just me!
At 35k, with normal 3-5k oil changes and a quality filter you should be able to eat off the motor no matter what oil you use.
Chances are the oil was never changed properly.
You say your motor ran crappy with synthetic because all of these deposits were let loose.
So what happened when you returned to dino oil?
The car magically started working fine again because these deposits found a home stuck inside your motor?
Something is wrong with this picture.
BTW this CAN and DOES happen to automatic transmissions all the time.
Don't change the fluid for a long time and then do it and chances are you are looking at tranny failure for the very reasons BlowBy01Gt mentions.
But on a motor?
I dunno....
Joined: Sep 2007
Posts: 35
From:
RE: synthetic oil
ORIGINAL: Blowby01GT
okay to settle this thing i know first hand in my 01 GT i changed from conventional oil at 35k miles, to synthetic and i had a heck of a hard time it would stall, it would smoke, and it finally left me dead one day at work i had roll back come get it and it had pushed all the deposits that conventional oil has, and pushed them through my engine, Syntheic is only good from the very beginning miles i would say 10K and Under! Because it will push all the sludge and build up through the engine and cause break down on the deposits! Syntheic does this because it is a super clean oil! Stick to conventional oil! But thats Just me!
okay to settle this thing i know first hand in my 01 GT i changed from conventional oil at 35k miles, to synthetic and i had a heck of a hard time it would stall, it would smoke, and it finally left me dead one day at work i had roll back come get it and it had pushed all the deposits that conventional oil has, and pushed them through my engine, Syntheic is only good from the very beginning miles i would say 10K and Under! Because it will push all the sludge and build up through the engine and cause break down on the deposits! Syntheic does this because it is a super clean oil! Stick to conventional oil! But thats Just me!
I think you needed a witch doctor, man, not conventional oil.
1st Gear Member
Joined: Oct 2006
Posts: 58
From:
RE: synthetic oil
why do u guys always have to knock someone, i kno what happens and yes i do change my oil, every 3500 but i think the mechanics know better than anyone just giving their thoughts on something that hasent even happened to them so until it happens to you dont speak a word yall, not being mean just saying i had it at two mechanics both said same thing! lets not knock each other all over the forums![:@]
1st Gear Member
Joined: Jul 2007
Posts: 74
RE: synthetic oil
I've had a couple of old mechanics warn me off of synthetic oil for those reasons and it turned out they were wrong. My fiance's Taurus was kind of a pile of poo when I switched to Mobil 1. Her uncle, the mechanic, and her dad, a long time Mustang owner himself, both screamed at me that it'd be dumping oil all over the place if I put that stuff in it. Well, they were wrong. No leaks or abnormal usage at all. I switched to Mobil 1 in my Mustang at 50k and had no problems. In my opinion it's never too late to switch, but you did miss about 100k miles work of benefits from it.
4th Gear Member
Joined: Sep 2006
Posts: 1,031
From:
RE: synthetic oil
ORIGINAL: ezerojas
No, no, this dude is dead on. I changed to synthetic in my GT, and all kinds of crap happened. My car started running 15's at the track, my reverse gear stopped working, my GT's radio only tuned to polka music, my wife left me for my best friend (who owns a Camaro), I found cherry Kool-Aid in my fish tank, my computer caught a virus, I had problems with ED (not the reason my wife left), my dog ran away, and all my wrenches only fit 11mm. I will never use synthetic again. It complete screwed my whole world. This is the law of cause and effect.
I think you needed a witch doctor, man, not conventional oil.
No, no, this dude is dead on. I changed to synthetic in my GT, and all kinds of crap happened. My car started running 15's at the track, my reverse gear stopped working, my GT's radio only tuned to polka music, my wife left me for my best friend (who owns a Camaro), I found cherry Kool-Aid in my fish tank, my computer caught a virus, I had problems with ED (not the reason my wife left), my dog ran away, and all my wrenches only fit 11mm. I will never use synthetic again. It complete screwed my whole world. This is the law of cause and effect.
I think you needed a witch doctor, man, not conventional oil.
Left you for a Camaro owner?
Wow, nothing worse than that!!!!
I guess I was a little over the top with the OP, but the problem with mechanics, especially old time mechanics (and I guess I am one of those at 47yo) is that old tales die hard.
When synthetic first became popular there WERE problems switching back and forth on SOME cars. Mostly because of the seal design and other internal clearences of the motors.
With today's motors you can switch back and forth but some cars seem to like certain oils better than others so stick with what works.
4th Gear Member
Joined: Sep 2006
Posts: 1,031
From:
RE: synthetic oil
ORIGINAL: Blowby01GT
why do u guys always have to knock someone, i kno what happens and yes i do change my oil, every 3500 but i think the mechanics know better than anyone just giving their thoughts on something that hasent even happened to them so until it happens to you dont speak a word yall, not being mean just saying i had it at two mechanics both said same thing! lets not knock each other all over the forums![:@]
why do u guys always have to knock someone, i kno what happens and yes i do change my oil, every 3500 but i think the mechanics know better than anyone just giving their thoughts on something that hasent even happened to them so until it happens to you dont speak a word yall, not being mean just saying i had it at two mechanics both said same thing! lets not knock each other all over the forums![:@]
I went a bit over the top!
A lot of old time mechanics are opposed to synthetic oil because they remember the days when it DID cause leaks etc.
Old tales die hard.
Those days are long gone, however there are differences and some cars run better on different brands/types of oil and that's a fact.
If you changed your oil ever 3000 - 5000 your motor should be super clean and you should not have a sludging problem.
I can't explain why your car acted so bad with synthetic but I suspect if you used one of the high mileage oils you would have had similar problems due to the high concentration of detergents and additives in them.
The key to long motor life is 3-5k oil changes and a quality filter.
I currently have a 92 Caprice with almost 1/2 a million miles on the original motor and tranny.
I've used mostly Castrol GTX and Wix/Purolator filters although I did cheat on occasion with Fram.
My 2003 GT uses either Mobil 1 or Penzoil Platinum although I might go to Motorcraft Synth blend because it is 1/2 the price and according to what I read it's just as good.
The key is to find what works for your car and stick with it.
3rd Gear Member
Joined: Mar 2007
Posts: 504
From: Where gunshots are more common than birds chirping
RE: synthetic oil
ORIGINAL: undecided.steve
I apologize to ya Blowby01GT!! [8D]
I went a bit over the top!
A lot of old time mechanics are opposed to synthetic oil because they remember the days when it DID cause leaks etc.
Old tales die hard.
Those days are long gone, however there are differences and some cars run better on different brands/types of oil and that's a fact.
If you changed your oil ever 3000 - 5000 your motor should be super clean and you should not have a sludging problem.
I can't explain why your car acted so bad with synthetic but I suspect if you used one of the high mileage oils you would have had similar problems due to the high concentration of detergents and additives in them.
The key to long motor life is 3-5k oil changes and a quality filter.
I currently have a 92 Caprice with almost 1/2 a million miles on the original motor and tranny.
I've used mostly Castrol GTX and Wix/Purolator filters although I did cheat on occasion with Fram.
My 2003 GT uses either Mobil 1 or Penzoil Platinum although I might go to Motorcraft Synth blend because it is 1/2 the price and according to what I read it's just as good.
The key is to find what works for your car and stick with it.
ORIGINAL: Blowby01GT
why do u guys always have to knock someone, i kno what happens and yes i do change my oil, every 3500 but i think the mechanics know better than anyone just giving their thoughts on something that hasent even happened to them so until it happens to you dont speak a word yall, not being mean just saying i had it at two mechanics both said same thing! lets not knock each other all over the forums![:@]
why do u guys always have to knock someone, i kno what happens and yes i do change my oil, every 3500 but i think the mechanics know better than anyone just giving their thoughts on something that hasent even happened to them so until it happens to you dont speak a word yall, not being mean just saying i had it at two mechanics both said same thing! lets not knock each other all over the forums![:@]
I went a bit over the top!
A lot of old time mechanics are opposed to synthetic oil because they remember the days when it DID cause leaks etc.
Old tales die hard.
Those days are long gone, however there are differences and some cars run better on different brands/types of oil and that's a fact.
If you changed your oil ever 3000 - 5000 your motor should be super clean and you should not have a sludging problem.
I can't explain why your car acted so bad with synthetic but I suspect if you used one of the high mileage oils you would have had similar problems due to the high concentration of detergents and additives in them.
The key to long motor life is 3-5k oil changes and a quality filter.
I currently have a 92 Caprice with almost 1/2 a million miles on the original motor and tranny.
I've used mostly Castrol GTX and Wix/Purolator filters although I did cheat on occasion with Fram.
My 2003 GT uses either Mobil 1 or Penzoil Platinum although I might go to Motorcraft Synth blend because it is 1/2 the price and according to what I read it's just as good.
The key is to find what works for your car and stick with it.
Joined: Sep 2007
Posts: 35
From:
RE: synthetic oil
ORIGINAL: 35thAnni99GT
ORIGINAL: undecided.steve
When the synthetic blend costs as much as a conventional thats when the warning lights go off in my head. You get what you pay for. There is no half-priced oil that performs as well as a higher priced product.
My 2003 GT uses either Mobil 1 or Penzoil Platinum although I might go to Motorcraft Synth blend because it is 1/2 the price and according to what I read it's just as good.
The key is to find what works for your car and stick with it.
The key is to find what works for your car and stick with it.
As for the last post, he has a very good point. Many people assume synthetic blends are 50/50 blends of conventional and synthetic; but where does it say that? It could be 1% synthetic, 99% conventional. The manufacturer does not disclose the ratio of blend.
Blends, in my opinion, are just well marketed, costlier conventional oils with a dash of sythetic in them. It's a great marketing ploy, if you ask me. Not to say they don't have their benefits; but for the price, you might as well go completely synthetic, or stay entirely conventional.