misfire

[yahmon]

5W-30 has a lower film strength than 5W-40 and thus causes a flat tappet cam wear faster. Even the older VE engines had cam wear issues on 5W-30 and the narrow PD lobes just make it even worse.

Bottom line is you can run what you like in your car but 5W-30 has killed a lot of PD cams. Even your owner's manual states to use 5W-40 if possible.

That 5w30 has less film strength than 5w40 is a widely believed conception that is false. I had to learn this the hard way years ago .

 

[peiphil]

You can drag a horse to the water but you cant make him drink!

 

[oilhammer]

You can drag a horse to the water but you cant make him drink!

No, but you can sure help make him look the fool on the intarwebs.

Ironic the guy that has the bad camshaft is arguing the obvious, isn't it? Glad MY PD's camshaft will live a long, happy life.

 

[1854sailor]

You can drag a horse to the water but you cant make him drink!

...or, you can lead the newbie to the information, but you can't make him think.

 

[yahmon]

Crap, was gonna test the oil at 20,000 miles but mechanic had thrown it out.

 

[thundershorts]

Dunno why any mechanic would dispose of perfectly good 20,000 mile oil....

 

[peiphil]

Dunno why any mechanic would dispose of perfectly good 20,000 mile oil....

LOL Plus a sample would be taken from the engine or midstream of the drain not from the dirty old drain bucket that everyone elses oil has been into!

 

[yahmon]

Dunno why any mechanic would dispose of perfectly good 20,000 mile oil....

Yeah no kidding

 

[yahmon]

last oil change at 40000 k (25000 MI), it seems to like it.
Just reading that MANN wants delvac synthetic 5w30 in my V12 24liter diesel and change it at 1000 hours. Gee all this low viscosity with long drain intervals?!?