I remember that in the 03 evos, breaking in the engine with dino oil resulted (generally) in higher hp. Are the IXs showing similar outcomes with dino oil too?

 

Where did you hear that from?

 

I agree with this statement...thats how I broke in my motor as well.

 

I used the stock oil through 3000 miles and I've been told my EVO 8 is very strong. Esp with my low mod list, 275awhp on a DD (no down pipe, no cams,93oct)
Honestly I don't think it makes difference.
-James

 

well what i understand with oil grades is that is we use for example SAE 50 on our engine it will be very thick oil and you will loose some horsepower but if we use 10w-30 or 5w-50 which are multigrade oils they tend to be more thin therefore engine parts move easily compare to a SAE 50 monograde oil which will be thick in cold starts and thick in hot weather!

 

I've been on Evom for a while and remember hearing it from Vishnu. Something about the synthetic is only there to keep the turbo from coking with cooked dino oil and how the synthetic doesn't help with the engine beak in...too slippery?



You broke your motor using dino oil?


Maybe you are one of the lucky ones with a well built factory motor at the high output end.

Or maybe this dino oil break in is just coincidence that the people who switched out their synthetic oil had strong engines too. I wonder if anyone who had used dino oil ended up with low hp output engines.

 

There used to be a thread either on this board or nasioc that showed some fairly convincing evidence that breaking in on dino oil increased hp. Certainly makes theoretical sense and should hold true for any motor.

Essentially, synthetic tends to be too slippery for effective break-in and it brings with it the risk of poor ring sealing which reduces hp in the long run. This is especially true if a car is broken in on synthetic and runs only on light load on steady rpm, eg freeway driving. However, manufacturers are happy to put synthetic in as it will to some extent protect the engine from the effect of operator error like loading the engine fully when cold.

The only time I'd consider synthetic for break-in is if the motor is broken in on an engine dyno and there is significant load on the engine fairly immediately. But why would you use there if all you are going to do is change it before you install the motor in the car?

 

so when the car is new the oil that comes from factory is not synthetic?

 

When I bought my 05 the Vishnu crew told me that the dino breakin only benefited the early run 03's.

 

Correct, the early 03s varied widely.

 

No, he said he "broke in" his motor on dino oil. Remember the question you started this thread with?

I don't think it makes that much of a difference really.

 

What about on rebuilt motors, non stock motors, but ones with built bottom ends going in used motors......(obviously honed)

Scorke

 

OH!!! LOL! I really misunderstood that one...guess I should slow down when reading replies...Thanks for the clarification

 

As far as I know, all Evos had synthetic from the factory (new car has synthetic)

 

General rule is that you never break in a motor on synthetic. Many high end motors do come with synthetic stock (factory fill) but are broken in on a dyno on dino( ) before the engine is installed in the chassis or on a chassis dyno after the engine is installed. Shiv and Co. did leak downs on many many 03' evos and found blow buy issues on most motors broken in on synthetic and consistently higher hp and less blow buy on the cars run in on non-synthetic.

There are factors though depending on the engine, it is up to the builder or manufacturer and the parts and machining they choose...
what type of finish is on the cylinders, what type of rings are used? is it an NA or supercharged/turboed engine.

Even though claims "Mobil 1 factory fill" who's to say in doesn't have non-synthetic in it? Maybe an additive to help with break-in? Who knows? If the problem truly has gone away after the 03' then perhaps they have done something to rectify the problem (as they should). Mine was broken in "hardish" on dino oil and it is a strong **** for the mods (304.9hp on a DD on 91 @ stage 1+ (9.8hotside)) so I'm sticking with my theory/technique. It certainly can't hurt to break it in on dino oil can it? (rhetorical question, the answer is absolutely NO).