Synthetic Oil [merged]

[DrunkenMime249]

All synthetic oil threads are merged here.i'm trying to buy a 1g dsm turbo awd (as i'm sure most of you know by now from my recent ramblings in other threads). Most of the ones i've been looking at are bone stock for the most part except repairs and i have a feeling all are running on regular oil.

my question is when i finally buy one should i run regular, full sythetic, or somwhere in between (i am planning on running full synthetic).

also, if the car is running regular and i want to switch to full synthetic, i've heard it can be damaging to switch all at once. or is that just a fable? it makes sense and i was planning on slowly uprading the oil quality everytime i changed it until it was running full synthetic. is that the wrong thing to do?

 

[95blackGsTurbo]

Might take you a while to get 1500k miles on the car (not even sure what number that multiplys out to) but I would wait a little longer than 1500 miles to change over to synthetic. Just to be on the safe side. I know of people that have tried breaking in a motor on synthetic and that's a big NO NO. So just to be on the safe side I would wait 3000 maybe even 5000 until you change over. Mobile one is the only way to go .

 

[TotalEclipse112]

Just so you know synthetic oil is a rip off. Its only there for the oil manufactuers to maoke a couple more bucks. It was orignally created by the military for aircraft use as an oil that could withstand extreme tempertaure cahnges and not loose its viscosity (i.e. an aircraft going form the artic to the desert in 1 day). But now it seems that it is the COOL thing to put in your car theses days. I use to think that it was better too, however it took a lot of wasted cash, and a trip to automotive school to learn that it is a waste. This is not my personal opinion, it says word for word in my book from school "Synthetic motor oil is more commonly used in sever towing application where natural mineral oils would break down and loose viscosity. Natural mineral oils are well suited for vehicles that will see street and some accasional track use." So unless you are towing a couple of tons or have a race only car, save yourself the cash and just get regular 10w30.

 

[slider85]

I had over 200K kms on my engine and I switched to Mobil 1, but after about one week my car went through a full bottle of oil. Something about how the synthetic is too thin and started slipping past the seals. I would stick to a quality regular oil.

 

[TotalEclipse112]

Oils shouldn't slip past any seals. Did you put that weird 0w-30 in your car?

 

[ninjai_ruken]

My motor had around 115k miles on it, so I decided to try a synthetic blend. As most of you should know full synthetic can be bad for your car, if your car sits for a day or two it seems like most of it likes to seep back down into the oil pan. And most engine wear takes place in the first 8-10 seconds of engine startup. So I decided to try a blend with Lucas Oil Treatment. I noticed a big difference in how my car ran, The idle was a lot smother. Now this maybe because the human mind was playing tricks on me, but I don't think so.

 

[TotalEclipse112]

Like I said synthethic is a waste of money unless your towing or have an exclusive race engine.

 

[Spoolin4Ever]

1. Synthetic oil is good for turbo cars, because of the heat of combustion is hard on the oil.

2. It's more resistive to coking in the turbo.

3. Flows better at cold temps (startup/the first 8-10 minutes of driving)

4. Has better ability to suspend particles, so less detergents have to added to the oil, leaving more oil to do do a better job of lubricating.

5. Lucas is good if you have an engine that leaks or burns oil. Only use as much as needed to get the job done, because it thickens your oil. Thicker is not better in most cases, but it's worth it if you have worn valve seals or piston rings to add some in those cases, IMHO.

6. Generally I say use synthetic in turbo engine (as long as it's not leaking or consuming excess oil), or in a newer engine. Worn or older engine use dino and lucas combo.

 

[91boost]

1) Synthetic oil is better than dino oil. Just look at the specs- they dont lie. Now, whether it is worth the extra cash or not? I think so, but that is a personal choice.

2) The "no synthetic for break-in period" is older than my grandfather. The only reason not to use it for break-in is expense.

 

[TotalEclipse112]

Wow the both of you sound like you are reading from a scrip. If synthetic oil is so great for turbo cars how come during routine maitenance Porsche dosen't use it. Also your trying to tell me that the people who told me this (who are master ASE techs) don't know what they are talking about? I'm not trying to start a pissing contest all I'm saying is that turbo or not the 4g63 was not built with tolerances so close to to such a level of perscision that it requires it. Its a mass produced motor. And for everyday driving and the occasional romp at the track synthetic oil performs no diffrent than mineral oil, its a proven fact. I'm just trying to help save you a couple of bucks here. But what do I know I'll just flush my $25,000 WyoTech degree down the toilt and and use my ASE certificates as kindling this winter.

 

[95blackGsTurbo]

Getting awful cocky with that degree. I graduated with some kids that were complete retards but they got above a 70% so they are ASE certified as well. I am ASE Master certified...and I went to a community college and I would put my knowladge up against anyone that thinks there $25,000 a year college is better. You get what you put in. I put in a lot and stayed after to learn about extra stuff and that's what I got out. Got over 96% on all of the ASE tests too. Even competed in Skills USA. Off that subject and onto another...I prefer synthetic over regular just because of startup. I don't like using regular oil and waiting for that thicker oil to thin out and get in all the little holes and it is cleaner.

 

[TotalEclipse112]

$25000 at one shot. Its a technical college, not harvard. Oh and by the way I payed for school with the GI bill. So I think I put in enough.Ever been to Iraq? Didn't think so. So I don't want to hear that kind of crap. I worked my ass off to get where I am now. I got over a 96 on my ASE's Graduated top of my class to. So don't talk to me about cockey.

 

[95blackGsTurbo]

First off congrats on spending $20,000 more than me. Second I don't approve of the war anyways so it's no big deal to me that you have a GI bill. My friend Shane has one too. So he got free schooling, free house and whatnot. But I've had an uncle and neighbor killed over there in the last 6 months and I don't see any point in being over there anymore. Bush is just in too deep already and can't back out. But we won't get into that because the rules state no politics.

 

[dalatinromeo]

i would wait till you reach at least 3000 miles before switching to mobil1 10w30.

by the way when you go to purchase mobil1 don't go to the auto store, go to walmart mobil1 10w30 $20

 

[91boost]

Wow the both of you sound like you are reading from a scrip.

I have a degree in mechanical engineering, and my minor was chemical. Trust me, synthetic is better than dino. The techical data sheets prove it. Just like I said though, is it cost effective to warrant using, that is a personal choice.

If synthetic oil is so great for turbo cars how come during routine maitenance Porsche dosen't use it.

Actually, Porsche does use it. In fact, it is factory fill for their entire line-up. (Mercedes Benz, Aston Martin and many others as well.)

Also your trying to tell me that the people who told me this (who are master ASE techs) don't know what they are talking about?

I'm not saying they don't know what they are talking about....I'm saying maybe they slept too much during that class.

...synthetic oil performs no diffrent than mineral oil, its a proven fact.

Actually, that is proven false.

But what do I know I'll just flush my $25,000 WyoTech degree down the toilt and and use my ASE certificates as kindling this winter.

You do that. I'll keep my FSU degree on the wall where it belongs.

 

[95blackGsTurbo]

And I'll keep my community college one on the wall in the garage. I have compared my books to those of UTI. Little to no difference in any subject and that's a $22,000 school. It's what you put in not how much.

 

[DGajre777]

I say that if you have the money get 10w30 synthetic oil, it provides better protection than regular oil. I like Castrol Syntec. If regular oil is better than synthetic, can we get some documentation or reports done on this research, please?

 

[91boost]

If regular oil is better than synthetic, can we get some documentation or reports done on this research, please?

Agreed, cause there is ALOT of documentation that syn is better than dino. Some facts with those claims please TotalEclipse112.

 

[Arod]

On BMW motorcycles BMW doesn't recomend using synthetic untill at least 12k miles. I don't know why that is just what they recomend. I'm guessing so that the motor can break in correctly seat the rings and everything. This is for air cooled oposed twin engines and they can get pretty hot.

Personally I think that synthetic is a waste of money for a street car. If you want to go 6k miles between oil changes and shut your engine/turbo off hot us it please. But if you do regular maintenance and are nice to your turbo I don't think you need it. My dad's turbo truck has 250K on the original motor/turbo and just had the turbo rebuilt because the turbine blades were just starting to rub the compressor housing, if you pushed on it hard by hand. This was with regular dino rotella 15w40 oil in it for at least the last 100k. I can name off at least 2 other turbo trucks like this. Always let the turbo cool down for a few minutes.

If I had a pure race car I would definately put sythetic in I just don't think you need it in a street car. IMO

Aaron

 

[L2RTSiAWD]

Synthetic is fine.

This argument is over.

 

[Sbeing1]

I bought them both when i did my oil change today but my dad said you arnt supposed to use the lucas oil stabilizer with synthetic oil that i put in. Is this true?

 

[94Jettameowpsst]

Im pretty sure there is a specific Lucas stabilizer for synthetic oils. Just go to autozone and ask, but i dont see why it would harm anything since you'd only be using about a half a quart.

 

[95-DSM-RS]

Nope Not True. I have used lucas with my synthetic since the day i got my car.

 

[spyder dst]

stop!!!

go here

bobtheoilguy additives

 

[95-DSM-RS]

Wouldnt the oil look like that when it gets changed?

 

[Sbeing1]

ok, i read that whole bobtheoilguy page. So do i trust him or the people here that say its ok? i think ill trust that bob guy and intead ill put the lucas into my tranny and differential. but if anyone has objections please tell me. thanks