D24TIC Oil Filter replacement

[RoyMacDonald]

Originally Posted by hawaiianblue

All manufacturers say that, simply because they cant speak for other makers products. It's gives them a get out clause for their vehicle warranty too, if your engine fails under warranty and you've put an aditive in there, then they'll blame the aditive no matter what.
You'll notice they also tell you not to fit different tyres than were originally supplied with the vehicle, so say it came with Michelins, you cant fit goodyears?

I think all most of these aditives are fine if used sensibly, but if you use good quality oil, then they already have such aditives included in them anyway. Things like slick 50 can improve crap oil, but chances are they'll have little benefit to good oil. Essentially all oil aditives do is either increase the viscosity of the existing oil ,to reduce consumption or 'synthetically fortify' the existing oil to reduce wear. So either use a thicker oil or fully synthetic depending on what you want to acheive.

I used some Slick50 gearbox aditive on my old car and it did make the gearshift smoother.
I've also used some Wynns stop leak, which does actually rejuvenate weeping rubber seals, well they stop weeping!

Check out this web site for some well informed information on oils and additives and very clear info on why it is a very bad idea to use an additive in a turbo charged engine. It also has a breakdown of the Court cases and judgements against additive companies. (inc Slick 50)

http://www.carbibles.com/engineoil_bible.html

Roy