WHAT WEIGHT OIL 5W-30 OR 10W-30 ?
08-06-2002, 01:54 AM
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WHAT WEIGHT OIL 5W-30 OR 10W-30 ? WHAT WEIGHT OIL DO MOST VETTE OWNERS RUN ? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
08-06-2002, 09:39 AM
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Re: WHAT WEIGHT OIL 5W-30 OR 10W-30 ? I live in Louisiana and it is very hot. During the hot months I run 20 50 this keeps my oil pressure around 40 42 . During the cold months run 5 30 to keep the same pressure....
08-09-2002, 03:46 AM
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Re: WHAT WEIGHT OIL 5W-30 OR 10W-30 ? If you're in an area where it's really cold, 5W-30--everywhere else, 10W-30 <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
08-09-2002, 03:50 AM
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Re: WHAT WEIGHT OIL 5W-30 OR 10W-30 ? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by MDL-01C5:
<strong>If you're in an area where it's really cold, 5W-30--everywhere else, 10W-30 <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I agree with the above statement.
<strong>If you're in an area where it's really cold, 5W-30--everywhere else, 10W-30 <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I agree with the above statement.
08-09-2002, 02:09 PM
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Re: WHAT WEIGHT OIL 5W-30 OR 10W-30 ? I only run 5w30. If it was really hot around here I'd run 10w30. Excess oil pressure is not necessary with these engines.
Eric
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08-09-2002, 04:08 PM
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Re: WHAT WEIGHT OIL 5W-30 OR 10W-30 ? The one thing I don't like about 5w30 is that it uses more VI improvers in it to span that larger gap, compared to 10w30. Therefore the 5w30 will thin out easier. I see quite a few oil analysis reports where 5w30 has thinned out to a 5w20, especially Mobil 1 5w30 which is thin to begin with. Sometimes it only takes 2000 miles to thin out! That's why I am sticking with 10w30 all year round in my area. If you pick a good 10w30 with a low pour point, you don't need the cold weather pumpability of 5w30. As a matter of fact, many premium oils in 10w30 will outflow conventional 5w30s in the cold. The 10w30 I'm going to be running this winter has a pour point of about -50F.
<small>[ August 09, 2002, 04:08 PM: Message edited by: Patman ]</small>
<small>[ August 09, 2002, 04:08 PM: Message edited by: Patman ]</small>
08-09-2002, 08:16 PM
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Re: WHAT WEIGHT OIL 5W-30 OR 10W-30 ? yeah....what he said <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> nicely put Pat...I don't think I'd ever put 20w50 in...low tenison rings have a hard time scraping the cylinder walls down with heavy oil...i'd bet that a couple of hp is lost too... just my .02
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08-12-2002, 02:59 AM
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Re: WHAT WEIGHT OIL 5W-30 OR 10W-30 ? With 10w-30 I'm concerned about wear at start up thats where I've heard most of the wear takes place. I will be using Mobil 1 Trisynthetic in either weight. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
08-12-2002, 05:10 AM
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Re: WHAT WEIGHT OIL 5W-30 OR 10W-30 ? Jason, you are absolutely right! 20w50 is much too thick.
Bill, the 10w30 will flow just about as fast as the 5w30 on a cold start, and the barrier protection in the oil prevents metal to metal contact anyways. I have seen no evidence whatsoever in oil analysis that would prove that 5w30 provides better protection. If anything, 10w30 shows better analysis results.
Bill, the 10w30 will flow just about as fast as the 5w30 on a cold start, and the barrier protection in the oil prevents metal to metal contact anyways. I have seen no evidence whatsoever in oil analysis that would prove that 5w30 provides better protection. If anything, 10w30 shows better analysis results.
