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.