Quick refresher.. I get my cP and cSt values of measurement crossed. I know HTHS is measured in one of the two...
And yes, I did also have a specific question. It is in regards to an oil with a cP or cSt (hence introduction to this thread) of 2.9. Would that be the thinnest possible 30 "weight" or alternately called 30 "grade" oil?
This is indirectly brought on by my ponderance of a 0W-20 or 5W-20 motor oil in the present Vortec 4200 I drive. It's had heavier than 5w30 since it left the dealer.. I keep hearing how "flow" of oil maintains max lubricity, as long as minimum oil pressure is maintained. Thinner oils usually also help any tick or slight knock noises on start-up.. GM'S "piston slap" we hear about. Start-up lubricity etc. I turn the key and go and I live on a downhill incline, slight, yes, but I can literally not touch the gas and be in 2nd gear not touching the gas by the end of the block ready to make the right hand turn. Turn the key and go is exactly that, on any kind of normal weather day, from cold overnight start... or winter, if warmed up.
My ponderances and information here have me with a specific oil in mind, likely to be achieved with a secreted oil change, since mechanic MAY BE using NAPA 5w30 Conventional though I have no proof.. He doesn't believe in synthetics for old cars. This the 10W-40 dude vs. The cap....... anyway. The information here will help me decide what to do.
I already know the Honda is probably going to get same oil, since the E-VTEC is actually activated by oil pressure, so the thinnest 30 is desired there as well.. Royal Purple is disqualified on these two cars, I believe it to be a great oil, but too thin. Quiet though. But not for these apps.
Blazer will be anything from a 0w30 in winter to even all year round if it makes my full hot oil pressure look good. Not worried about that one yet. If it works good in winter then it works good all year...
Also this engine has a 7 - quart sump.
And yes, I did also have a specific question. It is in regards to an oil with a cP or cSt (hence introduction to this thread) of 2.9. Would that be the thinnest possible 30 "weight" or alternately called 30 "grade" oil?
This is indirectly brought on by my ponderance of a 0W-20 or 5W-20 motor oil in the present Vortec 4200 I drive. It's had heavier than 5w30 since it left the dealer.. I keep hearing how "flow" of oil maintains max lubricity, as long as minimum oil pressure is maintained. Thinner oils usually also help any tick or slight knock noises on start-up.. GM'S "piston slap" we hear about. Start-up lubricity etc. I turn the key and go and I live on a downhill incline, slight, yes, but I can literally not touch the gas and be in 2nd gear not touching the gas by the end of the block ready to make the right hand turn. Turn the key and go is exactly that, on any kind of normal weather day, from cold overnight start... or winter, if warmed up.
My ponderances and information here have me with a specific oil in mind, likely to be achieved with a secreted oil change, since mechanic MAY BE using NAPA 5w30 Conventional though I have no proof.. He doesn't believe in synthetics for old cars. This the 10W-40 dude vs. The cap....... anyway. The information here will help me decide what to do.
I already know the Honda is probably going to get same oil, since the E-VTEC is actually activated by oil pressure, so the thinnest 30 is desired there as well.. Royal Purple is disqualified on these two cars, I believe it to be a great oil, but too thin. Quiet though. But not for these apps.
Blazer will be anything from a 0w30 in winter to even all year round if it makes my full hot oil pressure look good. Not worried about that one yet. If it works good in winter then it works good all year...
Also this engine has a 7 - quart sump.
