Anyone using M1 15w50?

[ezrax5]

Im still trying to fix my start up rattle on my 2001 4.4 e53 with 133,000 miles

I have Replaced the tensioner and made sure the oil is topped off.

It only rattle after about 3 hours of being shut down. Im 2000 miles in on the 0 w 40 oil.

I read here that you can fix it by switching to 15 w 50
I live in south washingtion and the winters never get below 25 degrees usally about 50 degrees


540i startup/VANOS rattle SOLVED with switching of oil

[tmv]

That oil would be too thick. I would try 10W-40 before going 15W-50.

[ezrax5]

Would it be to thick even if I let it warm up befor driving. Im really hoping this is the fix im looking for

[romeokc10]

You're wasting your time trying different oils, the rattle you're are hearing is called Vaonos rattle. Do a search hear or on Google and you'll find tons of info about this subject. The only way to permanently get rid of the noise is to rebuild the units and install the new improved seals or buy new aftermarket units with the improved seals already installed. The noise doesn't hurt anything and BMW was well aware of the problem in the late 90's, it affects mostly the V8 engines. If you replace VANOS units I would also replace the little oil anti-drainback valves, replacing them alone though will not fix the problem. By the way my X5 has that noise also, but it runs perfectly fine with over 200K on the odometer.

[romeokc10]

You're wasting your time trying different oils, the rattle you're are hearing is called Vaonos rattle. Do a search hear or on Google and you'll find tons of info about this subject. The only way to permanently get rid of the noise is to rebuild the units and install the new improved seals or buy new aftermarket units with the improved seals already installed. The noise doesn't hurt anything and BMW was well aware of the problem in the late 90's, it affects mostly the V8 engines. If you replace VANOS units I would also replace the little oil anti-drainback valves, replacing them alone though will not fix the problem. By the way my X5 has that noise also, but it runs perfectly fine with over 200K on the odometer.

[ezrax5]

The noise is really annoying me. I couldnt hurt to try right?

Have you ever used anything thinker then 5w30?

[ezrax5]

Hey is more positive results with 15 w 50
V

Second run with Mobil 1 15W50
Hello all. I have now over the years run the gammit of oils, from AMS 0W30, 5W30, 10W40 and 15W50.

I have an early production M62. It's renoved for making a dieseling effect when idling. Every grade of oil failed to quiet it. I went with the lighter oil = faster circulation philosophy for a long time.

Recently i switched from a AMS 10W40 to the M1 15W50 for the second time. Today in the temp was in the 30's and it started with the 15W50 smoother then with a lighter oil. I theorize it's because of the layer or coating it leaves behind as it drains over night.

The engine has more power and more off the line "snap" on this oil. Mind you i never burned a drop of even the 0W30. But this M62 Likes, make that Loves the 15W50.

I think the early M62 may have similar crank bearing clearances as the S62, which requires a 10W60 oil for proper crank bearing clearances. For this reason with the success of the 15W50, even in cold starts, I'll run a 10W60 during the Summer months.

M1 15W50, give it a shot. No more water like oils for me. I like for the engine to be smooth like butter.

[ezrax5]

Hey is more positive results with 15 w 50
V

Second run with Mobil 1 15W50
Hello all. I have now over the years run the gammit of oils, from AMS 0W30, 5W30, 10W40 and 15W50.

I have an early production M62. It's renoved for making a dieseling effect when idling. Every grade of oil failed to quiet it. I went with the lighter oil = faster circulation philosophy for a long time.

Recently i switched from a AMS 10W40 to the M1 15W50 for the second time. Today in the temp was in the 30's and it started with the 15W50 smoother then with a lighter oil. I theorize it's because of the layer or coating it leaves behind as it drains over night.

The engine has more power and more off the line "snap" on this oil. Mind you i never burned a drop of even the 0W30. But this M62 Likes, make that Loves the 15W50.

I think the early M62 may have similar crank bearing clearances as the S62, which requires a 10W60 oil for proper crank bearing clearances. For this reason with the success of the 15W50, even in cold starts, I'll run a 10W60 during the Summer months.

M1 15W50, give it a shot. No more water like oils for me. I like for the engine to be smooth like butter.

[romeokc10]

Originally Posted by ezrax5

The noise is really annoying me. I couldnt hurt to try right?

Have you ever used anything thinker then 5w30?

I've tried Mobil 1 10w-30, 10w-40, and 0w-40, nothing worked, I even had new ant-drainback valves installed when I had the timing chain guides replaced, nothing worked. Your only option is to rebuild/replace the VANOS units, and they're not cheap. The rattle open happens at startup, so to be honest it doesn't bother me.

[ezrax5]

I that rattle was a combo of the vanos and the chain slapping