Which oil would you use?

[Stewart G Griffin]

So, is it ok for a stockish engine with regular cam to sit around for long periods---days, weeks, even months and then started up with no pre-lubing?

[eventhorizon66]

A dry startup is not good for any engine.  It's best if you don't let sit for weeks or months without running.

[joesgarage71]

 Steward If your going to let it sit for along time get a oil filter that has a anti-drainback valve in it. It will help to keep oil in the passages.

[Stewart G Griffin]

So, the next obvious question is, do/did the AC delco filters have this drainback valve?

b) what other filters have a drainback valve?

[VileZambonie]

Stewart you can spend the rest of your life trying to figure out who has the best filter and a functional anti drainback design. Google it and read on endlessly. This is why we cut open a bunch of filters to see who's is what's.

http://www.lesabret.com/filters/filter.html

[Stewart G Griffin]

OK, so it appears that most filters have a drainback valve, but they are not of the same quality.

My problem is the truck may sit for longer than 2 weeks at a time.

[joesgarage71]

AC delco filters have this drainback valve?

The A/C PF1218  The Wix 1 Qt.51060 The Wix 2 Qt 51794
wixfilters.com

[bigblue09]

i use castrol gtx 10w 40. my dad has been running it since he bought the truck in 1987. its got 220,000 miles on it and still runs great.

[Stewart G Griffin]

Just a heads up;  Pepboys is having a special----5 quarts royal purple and a royal purple filter (never heard of it until now) for $49.95.

So i did it;  This is for a cavalier.


P.S.  i think i get it about the drainback valve because everytime i change the oil on the cavalier, it takes a second for the oil pressure to go from 0 to normal.  Whereas whenever i start the engine all other times, the pressure is right there immediately.  Now that i think of it, the oil filter on the cavalier is at a 85 or so degree angle to the engine block----so i can't really fill it with that much oil.  And that's why it takes a sec to get oil pressure whenever i change it?

[Slade]

Look into Castrol EDGE, it's new on the market. It's a full synthetic that according to Castrol exceeds the toughest wear standards in the industry. Also this might be more readily available in your area than Amsoil, Royal Purple or Redline.

[Stewart G Griffin]

Let's take it one step further and discuss exactly how you feel about oil additives such as Prolong, Slick 50 etc.

[joesgarage71]

 Steward,
 The only thing I use is GM's EOS I have done some reading over at the forums on www.bobistheoilguy.com and some of the gents over there use that auto RX with good results.  They have a whole section there on additives, Check um out.
 Steve

[Skunksmash]

Well, i am using my first trial of AMSoil with a Wix filter. The truck does seem to idle and run a little smoother. Course i guess that could be just a new oil change, as i have no idea what was in it before i changed it this time. I have only had it for about 8 months, and most of that time it has been in the shop for one thing or another. AMSoil seems to be pretty confident that it will not harm anything, they say they will pay to have the engine replaced if it does.