Castrol EDGE vs BMW 5W30 oils contest

What you see is what you get... in engine.

[frankgonzalez]

If you are running your engine at 400 degrees for 10+ minutes, your oil isn't the problem.

[mevlutunlu]

at the end the castrol edge wins. BMW oil has more residue

[Marc-hpne]

I stand by Castrol and always will. Use their 2T in my dirt bike and their engine oil in my vehicle. Never failed me thus far.

[mwangamutlema]

I knew a guy that used a heavy oil designed for excavators that he got for free in his car. He ran it like he did not care, everyone including me said the thick viscosity would wreck his engine. It never smoked and never missed a beat for 10 years. He changed it every 3-4000 miles regardless. I later bought the car off him for a project and decided to strip the head off to see how well it faired. I could still see signs of the honed cross hatching and no noticeable lip at the top of the bores. It looked remarkable inside and very clean. Over 90000 miles and still it had brilliant compression and never burnt a drop of oil. I think you could use almost any oil if you changed it regularly. Today, the £75 for 5 litres of oil are very good but often are expected to run up to 2 years and even 40000 miles. The oil is expensive so it does not get changed as often as before and often it's just fine but a regular change often highlights other issues that might cause trouble down the line. A slight leak, either oil, fuel, coolant, brake fluid, hyd fluid etc. Hose damage, blockages, drain holes, fuel/coolant contamination etc. Many bonnets only see daylight every year or two and often by then, damage is done. I worked in industrial maintenance for many years and regular oil changes gave long life and predictable performance. We tried, vibration analysis and oil sample analysis which did give longer run times but later longer down times due to increased wear later on. I'll stick to old school and keep it changed.

[Amathylar]

Did you all know that Castrol is the one thats contracted by BMW to make their oil? The BMW oil is a castrol oil.

[rootbeer]

I noticed a number of comments say that oil never sits still to cook. Actually, it does, when you turn off ignition on a hot engine. That's what turbo timers were for, to keep up circulation on idle to cool down before stopping.

[ellenlin]

Engine oil is designed for constant flowing inside the running engine block, there shouldn't be any circumstances that engine oil stayed still inside engine block with high temperature (running engine). The engine will be damaged if that happens regardless what oil you use.

[Mobay]

THIS IS A USELESS TEST! NO CAR ENGINE RUNS AT 400! DO NOT TEST A PRODUCT FOR A CASE IT IS NOT DESIGNED FOR!!!

[marlencisneros]

Its interesting to see but people are ignoring the fact that its not about which oil lasts longer, but not letting it stay too long in your engine. either oil is good in this case as long as the proper viscosity is used and most importantly keeping the engine up to date with maintenance.

[anonov]

If you get your engine oil to 400 degrees in your engine, you have a boat anchor for an engine.

[tomkusmierz]

HI boy and girls, this video was shown to me as some veird example by person outside of "trade" to prove something absolutely stupid ... anyway most of you are partially right.

As I was involved in engine design for some time I'll straighten few misconceptions that people have:
1. Yes in turbo your temperature will get sky high, regardless if you have intercooler or not - intercooler cools down air _after_ being compressed by turbo.
2. Most high charged engines nova days have oil cooler which will cool oil - oil passes turbo end engine at very high rate, there is simply no time for it to over heat
3. If you stop engine - yes oil will get exposed to high temp, still 400 Centigrade will be there for maybe a split second ... heat escapes really fast from hot spots
4. Turbo timer (thing that makes you engine run for a minute or so to let "oil cool down") was simply an answer to engines that were a) badly designed b) designing it better had no point - like racing engine in which you don't want to spent time on over-designing, but simple trick like timer will solve problem. Now problem was that when you hammer your car, yes turbo get very hot and if you will immediately switch it off your oil will get so thin it will completely exit turbo housing. NOW if you look at turbo on your car if it has oil feed and exit on top of the turbo - there is no chance for oil to evacuate turbo ... simple physics - this is how car manufacturers fixed the problem - simple init ?

Now few fact that people completely miss when talking about engine oils ... just astonishing how this can slip their attention.
1. Engine is considered a hot chemical reactor - a place where all kind of reactions take place, and burning fuel provides energy for those reactions to take place. Engine oil is meant not to react with metals and substances in your engine. Best example I can quote is that using exactly "same" oil in terms of viscosity mix number (yes two different oils are mixed to get xWy number like 5W30) will a) result in different PH messing up your turbo bearing, b) come in reaction with soft seals like injector o-rings or crankshaft seals and simply accelerate their ageing giving you co called "oil use over x miles" - This is where stupid certificates come to place - just check back of your car manufacturer approved bottle and bottle you want to use and compare certificates - most of them will mean that oil does not react with certain types of rubber or preserving PH over time and temperature.
2. viscosity mix means that oil can provide a lubricating film that given temperatures (bottom and top) that will provide certain hydrodynamic pressure for part rubbing against each other. This has absolutely nothing to do with how essentially your pump will shift it through the engine. Dropping oil pressure will mean that no oil is getting to some parts or that it gets there with insignificant pressure to cover whole surfaces with oil film ... one "racing mechanic home-grown genius" decided that there is no point to use oil that costs 1k a change and resulted in last piston not getting oil sprayed on bottom of it and completely melted it. Numbers did match - right ? Please if you don't get the sarcasm now better stop reading.
3. Every single engine since 90ties is designed to last for a million miles if used within specification - this means oli, service schedule, usage pattern. Now my Mrs was very upset with her diesel car when for second time injector seals got pushed out. I was a bit surprised as I did put a right oil there all along. Anyway to cut long story short I've put a can logging device there without her knowledge and after a week of her driving everything was VERY clear - when changing gears on hard acceleration she did miss-shift few times causing engine over-reving while turbo was putting maximum pressure and EGR was widely open (does that on shift) causing exhaust gasses being pumped into intake increasing pressure even more and just pushed out seals - moral here is simple: people with heavy right foot will blame oil or something else for their crap driving, other people with light right foot will chose crap parts and destroy engine prematurely.
4. Every single oil has it's capacity for being diluted by fuel - yes unburned fuel does slip out of your combustion chamber through ring to oil sump. Now there are two things to look at a) it will continue to lubricate your parts with certain amount of fuel in mix b) will not start reacting with fuel - remember hot reactor analogy ?

So, bottom line is:
1. Why for f*** sake you think you got something more to say than engineers spending billions on developing a bloody engine and telling you which oil to use exactly to give you best life span
2. If you can't afford to maintain the f*** car, why you have it ? seriously your ego is that big ?
3. People in development trade don't want to get involved because they have enough of silly home grown self proclaimed mechanics tell them stuff while they spent months in development testing facility proving otherwise.

[Manakuski]

Ninth bmw taxi going, always used original oils, no issues. Lots of idle running, very harsh conditions (down to -35 degrees of celsius), no preheating of the engine. Always starts, runs well and never had any issues.

[BikerMotion]

Back in 2012 Castrol had the license to produce BMW 5w30, with a special additives package. Currently that partnership is given to Shell!

[lokanjeloka]

Put the two oils in two steel cylinder of the same metal content..put a thermocouple on each to measure the Temp.Heat both cylinders at 100C constant.The lowest Temp reading on either cylinder will indicate the best oil.

[DLPerryla]

They do switch but if you look carefully, the BMW oil is moved to the right. Castrol EDGE has less residue

[sluggizmo]

Nice knowledge for the oil durability. Some people might be mistaken about the higher testing temperature. This is an accelerated test.

[pittwm]

I'll prob keep castrol as my oil...
1. I don't plan on 13k mile oil schedule... change it often.
2. It's relatively cheaper than BMW oil by 3 bucks a qt.
3. Castrol been around long enough, so they did't just put out a mediocre product to have that kind of staying power.
4. Official oil supplier usually means supplier who came in with the lowest bid...

[sugarg]

From the video it is quite clear that Castrol Edge was superior oil because it did not break down to leave too much sludge or residue at 400C.

[StillOnTheRun]

Thank you for the video! Shows very well the Castrol oil leaves very minimal sludge in the engine compared to the OEM BMW oil.

[Ihyoulube]

Sorry but this test doesn't have any validity, the test does not replicate the conditions the oil would be experiencing inside the engine, merely heating oil is meaningless.