Engine oil OEM Audi or Lucas

I do 5k/3 months. 3 months usually comes first.

In Canada Audi recommends oil changes ever 15,000km. I always do 10-12,000km because I do city driving. My buddy did every 25,000km on his Mercedes Benz and the thing lasted to 400,000km.

5-6k. It depends on how much you push the car. Hard acceleration and high revs will require more frequent oil changes.

Lucas tool oil is great.

I run the 5w-40 in my 2004 Audi A8 and both of my power strokes just because it's handy and the diesel grade oil is overall better than the other synthetic I was running in a 0w-40 weight.

like i said 280,000km and had a tick when i got it 2 years ago, used one bottle of lucas, tick is gone. i beat the sheeet out of it everyday. no more tick.

I use Lucas oil in my motor oil for 1990 VW 1.6L Jetta diesel. I started using Lucas Oil because a relative of mine has been driving a large semi for almost 30 years, and he, like many in the trucking industry, swear by Lucas Oil. Judging by the parts per million of metal present in my motor oil, my motor oil with 1 cup of Lucas Oil, was wearing pretty well.

2012 3.0tfsi turned out to be a mild hybrid as it burns 1l/5k km.

So I drained the gearbox while I was there and refilled with 1/4 Lucas oil, the rest 80/90

I installed an oil cooler on my buddy's 370z and he dumped in oil and a full bottle of this and I just scratched my head