Mobile 1 oil?
 

Anyone else have a problem with mobile 1 oil? I installed a turbo kit in my car and filled it with mobile 1 full synthetic 5-30w (weight recommended by works motorsports). After install I got smoke through the exhaust. I couldn't figure out why.

Took to a pro tuner and they did compression check, leak down test, checked the valve seals. Everything is good on the motor side. As a last resort they ask what oil I'm running and they say a lot of Subi motors have problems with mobile 1. Fill with motul race oil and no smoke.

Just wondering if anyone else has cone across this problem?

I had been running mobil 1 oil on my FRS and had no issues at all. Even when I had the supercharger.

I'll betcha the Mobil oil wasn't the problem ...... :popcorn:


humfrz

do you have oil catch can?

what do you think it could be? Nothing else was changed?

Edit: No mechanical parts were changed*

I use Mobil 1 0w-20 and I'm supercharged. I have not noticed any smoke. Also very little oil in the catch can.

No, but I'm getting oil in the exhaust side, only after the turbo. None in the intake system, intercooler, or exhaust before the turbo. Would a catch can help with that?

I'm not sure how the oil system works on a supercharged car. Is it the same oil for the engine and supercharger? The oil that went in that produced no smoke was the same weight as the mobile 1 oil. :iono:

:sigh: I've been doing a lot of research today, and just like every other oil thread...there's people on both sides of the fence. I've read about people using M1 exclusively in their subi and never burning a drop, and just as many people saying they burned it like a 2-stroke. :mad0259:

I run it in my 02 silverado with 200k miles and in my motorcycle and have never had a problem. I guess you just have to find what your car likes and stick with it :burnrubber:

So..... let me get this right... installed new turbo had smoking tail pipe, freaked out, got it inspected, everything checked out, then tried other oil and no smoky tail pipe?

Sounds to like like a typical new turbo start up. There is always a 1-2 minute of smoky tail pipe at start up. Every turbo install/upgrade i seen in my mr2 club days always did that.

Then again the subie world has always been plagued by Honda nation mindset about "what type of air is best for our tires."

In conclusion I bet your tuner tweeked with the fuel map or A/F ratio. Just my cents.

I'm talking about the engine oil, not the supercharger oil (which is different and self-contained). When the car was first started up and run during supercharger install, I do remember a bit of smoke and definitely more carbon turning the inside of the exhaust tips black. This went away after a few days.

I've been using mobil 1 for my last two oil changes supercharged and I don't notice any loss in oil. I've never had to add oil between oil changes since I owned the car.

It was probably just whatever assembly lube was used putting the super charger together blowing through your engine.

There is no significant difference between Mobil1 or any other off the shelf synthetic. There is gonna be some difference between their viscosity change over time/temp and all that, but for just regular driving there will not be an appreciable difference.

motul burns smokeless

No I drove it around for a while before I took it in (maybe 20-30 miles over 3 or 4 drives). He hasn't even put it on the dyno yet. It is still as of now running the flash tune from works.

Valve stem seals maybe?

When installing the turbo kit did you prime the turbo? (pull the fuel pump relay and turn it over a few times to get oil flowing through the turbo) I'm not sure if there are any instructions that state this but you should ALWAYS prime any new turbo before running the motor.

If you did not prime it. My bet is that it could be one of two things. 1 it's just the new exhaust piping on the car, it will smoke a bit some times. 2 it's the seals on the turbo are toast because of not properly priming it. Hopefully it's the 1st one.

You should look beyond the numbers on the bottle when comparing oil. The high kinematic viscosity and HTHS of Motul 300V has more in common with Mobil 1 0W40 than Mobil 1 5W30.

i always use mobile 1 full synthetic. never trusted any other oil in my car honestly for whatever reason. always wanted to give royal purple a try but that purple scares the heck out of me :D

What turbo do you run? Ball or journal bearing?
If ball bearing, do you use an oil restrictor in the oil feed line?
Could be the problem.

That's what I meant by valve seals in the original post. They are good.

I followed the works instructions and properly primed it. Pulled the fuel pump fuse, turned over 4 times for about 5-7 seconds each. Something like that. Can't remember exactly. But I've driven it enough by now I would think all the manufacturing crap would have burned off by now.

That's whatI used when it was stock and never had issues. :iono:

You'd still be able to smell it right? I could smell it BAD before. Now no oil smell at all.

It's a journal. Garrett gt28. I think there is still a restrictor in the line.

lol, I'm sorry. I was totally trolling. :cheers:

Just a question did you go all out when you installed the turbo or slowly broke in the car?
It could also be a pinched gasket.

For the oil part I highly dought it as I use to run 10w30 in my 06 wrx. I went to full syn Mobil 1 after my break in period. No problem ever.

I think you have an excellent point. I'm going to tell a little story that, at first, will read totally off topic but hang with me.

A while back, I replaced my original transmission with a salvage one. The first test drive seemed fine but it was only for a couple minutes. The next day on my way to work it leaked and sprayed oil all over the underside of the car. Looked like a disaster but ended up being only about a cup.

I had bought a rear seal ahead of time for the used trans but, after noting the good condition of the one it already had, I opted to skip it. As I gently drove my car home in the right lane, I thought to myself "Big mistake, you moron." Hard to believe though, because I've done this kind of work my whole damn life.

It turned out to be a tiny fleck of sawdust I had originally missed when I first inspected the oil seal. I flicked it out with the end of a zip tie and put everything back together. It has been perfect ever since.

Moral of the story is that I learned how little it takes to destroy the integrity of a shaft seal. Maybe it was the same for the turbo. @drz400dude, maybe you were unlucky enough to get the one in 500 with some shit stuck in a seal but this time it worked itself loose. :iono:

And I feel a little bad because of my joke but you gotta admit that was a pretty good troll. :D *high five* *bro hug*

Lol no worries. For as much as it cost it should be smokfree! But there is smokeLESS 2 stroke oil. So I figured hey, anything is possible.

Yea I'm not sure. But if I get any more problems works said they'd warranty the turbo no problem since I already proved it's not my engine.

No, the first time I started it up it was still on all 4 jack stands. I slowly let the temps come up. But it started smoking almost immediately. I thought what some others have said, it's just the new pipes, turbo, etc. So I took it for an easy drive for a few miles and it got way worse.

What gasket are you referring to? From what I understand (I've never taken a turbo apart) but the oil seals are a hard carbon substance, not like a rubber o-ring. I don't think you could pinch them.

Both works and the tuner have said it's kinda hit or miss with mobile 1 and subi's. Sometimes it works, simetimes it doesn't.

Haha... right? :word:

With no access of data with your tune. If it's a new turbo you should break it in slowly just like your first 1k miles in your cars OM. Think of it as a new car keep the rpms low for that time.

The seal it could be an leaking intake seal or exhaust seal. Or pinched seal in the turbo. I'm my wrx I used 10w30 what it recommends for turbo cars back then. I would check your oil level to see if your actual burning oil some where. If your not losing oil. I would then move to the turbo check see if the turbine is black or if there is any residue in the turbo or any of the exhaust post engine.

It could be as simple as a o2 sensor or mass airflow sensor. If that checks out it has to be a tune issue. It could be running really rich for some reason.

Just changing brands of oil will not cause it to smoke.

How many pounds of boost are you running? Did they change your compression ratio when they added your turbo? Are all the lines running correctly and no leakes ?

Your tune should be vary Light and low boost till your parts are broke in properly then you should tune it a little more aggressively for your application. If your tune is to aggressive with out proper break in you could put to much stress on your regular inturnals of your block and could cause the smoke.

Are you now running 300V from Motul?