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I use the Pennzoil 10 W 40 "high mileage engine" oil in my Square, its good for a couple PSI hot and claims the same viscosity of the 10W40 Keith Top Notch Restorations topnotch@nycap.rr.com 71 Squareback 65 Notchback "El Baja Rojo" 65 Squareback "Eggcrate" 87 golf "Winterat" 93 RX7 "Redstur" -----Original Message----- From: Will McCreight [mailto:whmcc@attglobal.net] Sent: Thursday, April 13, 2006 10:19 PM To: type3@vwtype3.org Subject: Re: [T3] too much oil -vs- gas in oil Today I prepared to syphon off the "extra" oil, only to discover that when dead cold, the oil was right--halfway between the marks!! In retrospect, I could have been checking the engine when it was too warm or something...will write more later if problem unresolved. Also, Jim Adney, in his usual excellent reply said: BTW, I don't recommend heavy weight oils. They DO reduce leaks, but they also restrict flow to the engine and require more HP just to pump around; that's power wasted. It's not really true that the oil has to be thick to lubricate well. What the bearings really need is a plentyful supply of oil, and heavy weight oil can sometimes actually starve a bearing. My question then...should I be using strict 30 or 40 weight oil, a multigrade oil (and if so, which weight(s)), or something else? The big reason I made the switch to a thicker oil had to do with the incessant oil light flicker after installing the VDO dual sensor so I could add an oil pressure gauge. Is it OK for the pressure to run at perhaps 5 psi at idle, or should I be concerned? Back when I was just an "idiot" with the light only, I didn't give it a thought, but now with oil pressure/temp/vacuum/voltage/tach (and considering CHT), I am getting a feel for what happens when, relatively speaking. Making an oil weight choice based on a gauge reading may not be a wise decision...open to opinions. BTW, check out my next email for news re: intermittent wiper delay success! -- Will McCreight whmcc@attglobal.net Portland, OR (208) 661-6262 cell ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~