Nulon semi 15w 40

semi syn ? full syn no good

Brad Penn 15w 40 semi syn

I have spoken to some of the oil tech guys at Nulon about this exact topic in person.

I asked 'is there absolutely any time where using a mineral, or semi syn has ANY advantage over using a full synthetic?" His reply was 'no there isn't'

It's as simple as this... Mineral and semi syn have more contaminants in them. The oil isn't as pure.

I mentioned about guys with the cams wearing. He said a full syn cannot creat more wear than a semi for instance.

I know the owners manual recommends it, but the oil change intervals are also listed at 15,000km or yearly if I'm not mistaken. Got to be kidding if anybody thinks that is a good idea.

They simply do this to keep the 'servicing costs' down. My personal opinion is this is why they reccomend that oil as well. It looks cheaper when buying the car new.

It will get you through warranty period. Then your on your own.

60k serviced by ford.

What oil have u run ?

It had nulon 10/40 full synth in it when I first noticed the noise.

^^^ waiting for the oil theory again

Really would like to know where we're at with my donor cams?

It had nulon 10/40 full synth in it when I first noticed the noise.

Good mineral oil FTW.