Lubro-Moly mos2 10w40 -opinions?

[Russell]

Going to try Lubro-Moly mos2 10w40 semi synthetic in my old bmw 1995 525i with 188,000 miles. Any opinions?

I hope it is as good as my current fill with Valvoline 20w50 Maxlife blend which is smooth and quiet. I have high hopes. Quality german oil in a german car.

[Tiger]

Just stick with any synthetic is fine... no need for super 'fancy' motor oil... That's like drinking Budweiser instead of Miller...

[whiskychaser]

AFIK Germany doesnt have any oil wells The handbook has a graph showing which oils are good for which temperature ranges. It shows 20-50 is good for 0-50 deg C. Provided you never get frost where you live I'm sure its fine. 10W-40 semi synthetic works just fine for me. And it works fine in her car too
Be interested to learn if you get any improvement though

[Russell]

beg to differ. Lots of guys on bobistheoilguy forum would argue big time with you.

In my case 0w40 mobil I is terrible in my car - very noisy and produced bad used oil analysis. I have found that my car seems to like heavier conventional or synthetic oils. Hence trying a German oil. Only $36.87 for 6 liters at NAPA.

[Russell]

AFIK Germany doesnt have any oil wells The handbook has a graph showing which oils are good for which temperature ranges. It shows 20-50 is good for 0-50 deg C. Provided you never get frost where you live I'm sure its fine. 10W-40 semi synthetic works just fine for me. And it works fine in her car too
Be interested to learn if you get any improvement though

I hear you. I doubt if i will see any real change.

I have run 15w40 in the winter with temperatures around 0 deg. F. Car started and ran fine. However, there was a lot of noise as the thicker oil pumped up to the valves train. Much quieter in cold weather with lighter oil.

[Tiger]

I am weaning myself off Mobil 1... going to use Amsoil once I finish my Mobil 1 supply of 5w30.

Really? That cheap at Napa? I thought those were like $8 a quart... I have not seen a 6 liter bottle... most of them are 5 liters. At your price... $7.374 per quart.

You can argue about oil but I have to tell you... how many of those guys actually runs those oil until it needs to be changed out by oil analysis? Right now, my folk's 01 E320 has been running on Mobil 1 to 10,000 miles per oil change. It is 9 years later and approaching 75K miles... no problem with engine.

I hear guys changing synthetic oils out at 3 to 5000 miles! Insanity! Synthetic oil are great today that they really do protect your engine and keeps it super clean. Then again, when is the last time you had an engine go bad because of synthetic oil...

Yes, it is all marketing and analysis game... but synthetic is just so much better than dino oil. It brings our oil maintenace down to once a year or reduce our time from 4 oil changed down to 1 oil change. We don't need to waste time and money those 'three extra times."

[Tiger]

Augh! Now look what you did to me...

http://www.bobistheoilguy.com/cms/in...id=78&Itemid=1

I have to read the rest later... it is way after 1am...

By the way, Bob got some really nice pricy cars!!!

[Russell]

actually 5 liter container and 1 liter bottle.

[genphreak]

I always go for lowest/highest, ie cheapstuff @15W/50 and expensive 10W/50 (which is what Bob reccommends for 50 weigght oils: "Shell Helix Ultra 15W-50"). I figure engine temps are the same unless it is freezing where you live, so surely only a few people can really get away with oils rated below 50 when that is wht the manufacturer reccommends. I tried 10W/40 once, it made the valves really noisy on a warm day under load. Haven't gone back since...

Really, if it made your car even 10% more efficient to run 0W/20 oil (without much else comprimised), the manufacturers would specify it in a flash. They don't, and that is because 1. It is more expensive, and 2. The engine comnponents no longer have the lvel or protection they need to keep them safe from occaisionally 'harsh conditions'.

[Tiger]

Then go for it... that is good price.

Just finished Bob is the oil guy... rich dude... doctor and probably has mechanical engineer background before he went to med school. I don't know if he has a bio...

In the end... he advocate thinner synthetic oil... 0W20 is the way to go.