View Single Post
Old 07-06-2015, 04:22 PM
crystalworks's Avatar
crystalworks crystalworks is offline
Join Date: Jun 2014
Location: SA, TX
Posts: 6,418
crystalworks is on a distinguished road
I run 20w50 in mine (hot climate here) and still have the smoking. Oil consumption is definitely way down to maybe a quart every 5000 miles as yours is but the smoking persists.

David, I don't think it's an issue so much with the product as I don't think Lucas would risk the liability involved if it were indeed a danger to engines. What I think it is more an issue of for people are that it isn't actually fixing the problem but "band-aiding" it. It's a purist train of thought for sure (and one I am guilty of depending on topic) and is probably why you are seeing some resistance...

Bottom line if it works for you... awesome. Replacing valve stem seals is a helluva lot of work and I might try the Lucas additive as well if it holds no danger to other systems. I always equate stop leak products with coolant stop leak products where you end up with chunks of silica type material all over the place.
2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)

2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
Reply With Quote

Sponsored Links