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rbh261 · 03-17-2009, 06:27 PM

Straight from FSM

3. REMOVE OIL PRESSURE SWITCH
Using SST, remove the oil pressure switch.
SST 09816–30010
4. INSTALL OIL PRESSURE GAUGE
5. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
6. CHECK OIL PRESSURE
Oil pressure:
at idle 29 kPa (0.3 kgf/cm2, 4.3 psi) or more
at 3,000 rpm 245 – 520 kPa (2.5 – 5.3 kgf/cm2, 36 – 75 psi)

Looks like you may be a little low at 3k rpm, but this can be dependent on oil condition,oil weight and I would imagine filter condition may affect your results too. I use 5w-20 Syntec blend and would expect a lower number if I checked my pressure. My '77 Jeep holds about 60psi, but I use 20w-50 oil in it to get it there. 10w-30 results in lower pressure. Without a gauge, I would probably stick to 10w-30(in my Jeep) and never think twice of it.

03-17-2009, 06:27 PM	#10 (permalink)
rbh261 Registered User Join Date: Nov 2004 Location: Martinsville, VA Posts: 149	Straight from FSM 3. REMOVE OIL PRESSURE SWITCH Using SST, remove the oil pressure switch. SST 09816–30010 4. INSTALL OIL PRESSURE GAUGE 5. WARM UP ENGINE Allow the engine to warm up to normal operating temperature. 6. CHECK OIL PRESSURE Oil pressure: at idle 29 kPa (0.3 kgf/cm2, 4.3 psi) or more at 3,000 rpm 245 – 520 kPa (2.5 – 5.3 kgf/cm2, 36 – 75 psi) Looks like you may be a little low at 3k rpm, but this can be dependent on oil condition,oil weight and I would imagine filter condition may affect your results too. I use 5w-20 Syntec blend and would expect a lower number if I checked my pressure. My '77 Jeep holds about 60psi, but I use 20w-50 oil in it to get it there. 10w-30 results in lower pressure. Without a gauge, I would probably stick to 10w-30(in my Jeep) and never think twice of it. __________________ '98 4-Runner SR5 V6 Automatic Intake elbow removed, Sony head unit, Sony Class-D amp, Sony 10" sub enclosure and F&R components Brad Hall Service Advisor Nelson Automotive Group 201 Commonwealth Blvd. Martinsville, VA 24112 276-638-2331 www.autosbynelson.com Last edited by rbh261; 03-17-2009 at 07:03 PM. Reason: clarification