-----Original Message----- From: [EMAIL PROTECTED] [mailto:membersozdat_owner@;datascribe.com.au]On Behalf Of James Morrison Sent: Monday, 11 November 2002 5:26 PM To: [EMAIL PROTECTED] Subject: Oil
hey guys, my L18 is low on oil and instead of gettin my usual oil i was wondering: 1. Is it true if you have rings on the way out thicker oil will smoke a bit less? For a while a thicker oil will burn less, then as it goes off you'll lose relatively a lot in very short time. A lot of people including local garages tend to put the wrong grade of oil in a L series engine most of the time these days anyway, they aren't made for the really thin multivalve oils - good old GTX is back and most L engines will run real well on it - most oil that you'll burn on a half decent L engine will go down the valve guides, the tolerances are far greater than in a modern multi-valve engine. If you've got damaged rings and or bore then the grade of oil doesn't really matter all that much. A lot of ppl swear by a brand and grade of oil, take one of my favourite oils, Valvoline XLD for an example - great oil in the 80's, far superior for L engines than GTX2 with its friction modifiers etc, Valvoline goes to a SF/SH rating which suites multi-valve engines, turns into crap for L engines overnight, so I'm back to GTX2 or Pennzoil or Penrite. GTX comes back on market in it's original SE rating, L engines happy again and running the full distance between changes. 2. Whats the thickest oil i could run? Good question, something like a 10w30 multigrade that's suitable for a Holden grey, or early British engine - not recommended for a L engine as the piston feet per minute (this has another name that I forget) is too great and it will break down over 4K rpm especially in a L18. 3. What are the downfalls of running thicker oil (ie. performance wise etc) Not a lot, you may lose a HP or two, but the problem is the same as in Q2 Also i have a sticking brake piston which is causing the caliper to flap around and make a shitty noise over bumps, whats the best solution for this?? new caliper? hammer out piston and grease it up? That's more likely to be a warped rotor are a slide problem eg the anti-rattle spring plate has gone awol - a sticking piston usually sticks on, not off. Try a second hand calliper for sure to see what happens. Thanks for ya help guys Your welcome. regards Terry James _____________________________________________________________ Get Your free Ozdat Email Account ---> http://www.ozdat.com _____________________________________________________________ Select your own custom email address for FREE! Get [EMAIL PROTECTED] w/No Ads, 6MB, POP & more! http://www.everyone.net/selectmail?campaign=tag --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/membersozdat@;datascribe.com.au/ ---------------------------------------------------------------------
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