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boxster oil additive

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hi all trying again to post this so sorry if it shows up few times just got a 2.5 2000 87k after 25 yrs with mercs ive allways used slik 50 every few oil changes as it helps on cold start ups as well as other things any one have any thoughts about useing in my boxster im not talking thickners im talking about teflon based products cheers all dave

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If you are using a top quality full synthetic oil of an appropriate viscosity, aftermarket additives’ are a total waste of money. Most are short term “band-aid” products that do little if anything good. Some can actually have a negative effect on the oil itself.

Edited by JFP in PA

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i agree to a point i ran a largish repair shop for 20 odd yrs so have a bit of an idea. as i pointed out im not talking about the products that are pretty much oil thickners and band-aids as you rightly say.but there r some very good mostly teflon based products out there. some are used by large manufacturers to coat turbo bearings etc on new cars and trucks to protect on start up and i see from the many posts on here re start up noise [from top end ]maybe a little help might be a good preventative tactic. thay work on a molecular level and in simple terms stick to the surface of the metal rather than draining down when engine is standing thus protecting it for the second or so the until the oil is upto pressure and circulating to all parts of the engine as on more conventional type engines the 1st place the oil is fed to is the mains and end shells and was wondering if this was allso the case with a boxer type set up cheers dave

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I remember contemplating using this stuff, and have kept this thread around as a reminder why not to try it:


My personal favorite:

"quote by Andy Granatelli (CEO STP). Interviewer "Did that stuff (STP) actually work". Andy "Yeah it worked, it made me a ton of money". (paraphrased)"

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Shell bought the SL50 brand name and pawned it off on Quaker State, who thankfully doesn't put PTFE resin in their formula. It's likely a harmless additive booster at best....maybe some seal conditioner.

Definitely falls into the "feel good" category.

Folks, there simply isn't an additive that lube engineers ~forgot~ or were too cheap to include. The add pack is a system, where all the constituents need to be in balanced proportions, don't think you can "improve it".

Check out the additive supplier's sites, like Lubrizol...



Best to just use a HiMiles oil, 10w-40 unless you see below zero F or do mostly short trip driving.

If you want something modern and high tech, try the Conoco oils with Titanium, like Kendall. The Ti gets worked into the engine metal parts, it's no joke.

http://www.conocophi...Ti) TDS Web.pdf

Edited by R Clark Stewart

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