i ve been using amsoil cetane boost for maybe a year less or more now. it comes in a 64 oz bottle. its about $23-$25+shipping. thats straight from amsoil, if you order from a (independent)dealer i doubt it d be such a reasonable price.
like most additives its 2oz to 10gals of fuel. or 1oz per 5gals. as most fill-ups are about 10gallons, use about 2oz per. a big bottle of that stuff will last over 6 or 8 months. for normal mileage, fill-ups. -*its a small price per fill-up*- to add. should add ~7cetane points at that amount.
im sure for normal cold-starts and all starts it helps. for these cold weather and extreme cold starts cold-flow, anti-gel, winterizer (<same thing)will be the most help. keep fuel from gelling, and flowing when cold.
i use the cetane boost to try to get better combustion. hoping for uniformity in combustion, in the chamber(s). added economy and performance, theres bound to be some--, i will take.
happen to have had very good results from amsoil products. for diesel and gas. i use a good number of their products, for some time now.
the only thing is the power steering topic i had in the mk3, a3 section of forum, some of the members thought im using the wrong type of p/s fluid for our models. p/s moves smoooth tho. hope it works out.
