Dropped the new motor in the car this past weekend and my buddy managed to put mobil 1 10w30 in there when I wasn't paying attention. The car has been driven for 15 miles..as soon as I found out it was mobil 1, I drained it. My question is now, should I throw in some non synthec oil or should I just continue to use the mobil 1 since the bearings are already coated with the mobil 1?

 

Switch it out ASAP, it maybe too late already... Do a compression check later.

and hit your friend over the head with a stick for me

 

switch it out for non-synthetic oil and drive it normal for the next 800-1000miles.

it should be fine

 

non detergent oil

 

I should stick with 10w30 oil or change up to a different weight?

 

I just changed the oil to something non detergent and I'm wondering if I should go right out and beat on her a little to try to get the rings to seat or should I still baby it a little bit.

 

"if the rings havent seated in the first 20 mins, they probibally never will"

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Pfieffdog &raquo;</TD></TR><TR><TD CLASS="quote">I just changed the oil to something non detergent and I'm wondering if I should go right out and beat on her a little to try to get the rings to seat or should I still baby it a little bit.</TD></TR></TABLE>

Sounds like a good idea, but then you risk spinning a rod bearings if your clearances are still tight, but if your rings don't seat you have to tear apart anyway.

 

I would go out get it warmed up real nice then do some hard pulls in 2nd-3rd gear out of vtec and use the engine to decelerate.................John

 

personally on a new motor, i wouldnt rag on it until after the break-in period. it may cause trouble down the road but thats just me. i'd play it safe and just switch oil and drive normal, but it's your car.

 

Lil update, new motor now has 160 miles on it and it pulls real strong. I don't think anything got fucked up when the mobil 1 was in there.

 

It's been said before, but GM puts Mobile 1 synthetic in their 'vette engines before they are started and sold. I've seen the GM machine shop where all prototype engines are made, and there are hundreds of millions of dollars of machines that simply do prototyping. Speaking from an engineering perspective, and seeing the vast CNC machining/time resources that go into designing engines, I highly doubt that a manufacturer would prescribe doing something on an engine that would negatively effect break-in.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nikolai &raquo;</TD></TR><TR><TD CLASS="quote">It's been said before, but GM puts Mobile 1 synthetic in their 'vette engines before they are started and sold. I've seen the GM machine shop where all prototype engines are made, and there are hundreds of millions of dollars of machines that simply do prototyping. Speaking from an engineering perspective, and seeing the vast CNC machining/time resources that go into designing engines, I highly doubt that a manufacturer would prescribe doing something on an engine that would negatively effect break-in.</TD></TR></TABLE>

why don't you call up a Honda dealer and asked them if they put in synthetic oil for break-in. If you're speaking from an engineering standpoint, do you think a GM motor=a Honda motor?

 

Not Just Chevy's,


Mobil 1® comes as standard equipment in some of the finest production vehicles you can buy. It's "factory fill" in Chevrolet Corvette, all Porsches, Mercedes-Benz AMG models, Dodge Viper, Ford Mustang Cobra R and all Aston Martin cars. Here are some remarks from some of the top engineers and executives at these renowned manufacturers.

"Every car produced in the factory in Stuttgart gets its first oil from Mobil 1. And that means that all our cars and engines are developed with that product."
– Herbert Ampferer, Director,
Porsche Motorsports

"Mobil 1 is the only oil we use for our engines as the first filling. And then we put the sticker in the engine compartment just to make sure that people know what's in their engines."
– Domingos Piedade, Managing Director,
Mercedes-Benz AMG.

Myths About Synthetics


Myth; You should break in your engine with conventional oil, then switch to Mobil 1.
Reality; You can start using Mobil 1 with SuperSyn™ in new vehicles at any time, even in brand-new vehicles. In fact, Mobil 1 with SuperSyn™ is original equipment (it is installed at the factory) in:


Chevrolet Corvette
All Porsche vehicles
Mercedes-Benz AMG vehicles
Dodge Viper
Ford Mustang Cobra R
All Aston Martin cars





One of the myths that persists about Mobil 1 is that new engines require a break-in period with conventional oil. Current engine manufacturing technology does not require this break-in period. As indicated by the decisions of the engineers who design these high-performance cars, Mobil 1 with SuperSyn™ can be used in an engine from the day you drive the car off the showroom floor.





I wouldn't think that our car's metallurgy is that proprietary...I dunno. There's gotta be some common ground between these fine engines.