nic walker Posted July 30, 2017 Share Posted July 30, 2017 Log In Sign Up TOP COUPONS GROCERY VIDEO GAMES TV COMPUTERS FINANCE HOME APPAREL TECH CAMERAS AUTO HEALTH & BEAUTY CHILDREN ENTERTAINMENT TRAVEL Forums The Deals Hot Deals Thread Tools Search This Thread FRONTPAGE DEAL Prime Members: 5-Qt Pennzoil Ultra Platinum Full Synthetic Motor Oil Posted Yesterday by sprite23 at 01:10 AM Amazon.com has for Prime Members: 5-Qt Pennzoil Ultra Platinum Full Synthetic Motor Oil (10W-30) on sale for $24.97 - $10 Rebate = $14.97. Shipping is free. Thanks sprite23 Editor's Notes & Price Research Written by SubZero5 Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trialwith free 2-day shipping, unlimited music, unlimited video streaming & more. If you're not a student, there's also a free 1-Month Amazon Prime trial available. A maximum rebate of $48 per person, household or address (email and physical). Link to comment Share on other sites More sharing options...
nic walker Posted July 30, 2017 Author Share Posted July 30, 2017 Hi Folks, for some crazy reason I could not post on the forum - I completely forgot my sign in info or it doesn't work anymore - how can I resolve this issue - please help as I am listed as a newbie now????? Also, Is this 5-Qt Pennzoil Ultra Platinum Full Synthetic Motor Oil (10W-30) the most appropriate oil for my 90 Select Sixty with 44k please or should I just use the Platinum instead of the ultra and is the 10w-30 - I live in Richmond Va? Thanks, Nic Link to comment Share on other sites More sharing options...
nic walker Posted July 30, 2017 Author Share Posted July 30, 2017 I hope the below is posting - i entered or copied and pasted the deal here earlier but I do not see it???? The oil deal is for Amazon Prime Members............. Prime Members: 5-Qt Pennzoil Ultra Platinum Full Synthetic Motor Oil Posted Yesterday by sprite23 at 01:10 AM Amazon.com has for Prime Members: 5-Qt Pennzoil Ultra Platinum Full Synthetic Motor Oil (10W-30) on sale for $24.97 - $10 Rebate = $14.97. Shipping is free. Thanks sprite23 Editor's Notes & Price Research Written by SubZero5 Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trialwith free 2-day shipping, unlimited music, unlimited video streaming & more. If you're not a student, there's also a free 1-Month Amazon Prime trial available. A maximum rebate of $48 per person, household or address (email and physical). Quote Edit Link to comment Share on other sites More sharing options...
nic walker Posted July 30, 2017 Author Share Posted July 30, 2017 It is now posted in both locations - I give up ! Link to comment Share on other sites More sharing options...
89RedDarkGrey Posted July 30, 2017 Share Posted July 30, 2017 An inherent drawback of full synthetic is that if you have a leak, even a tiny seepage- it will clean out the sludge, and make the leak more pronounced. That's what gives some the idea that "synthetic oil causes leaks". Fully synthetic motor oil is a precisely uniform molecule- unlike "conventional" oil, that is irregular in form, and globs together easily. Think about it this way- many want the viscosity index and longer change intervals of a full synthetic, but in '88-'91 there were no oils like that available. While I can't see any real benefits of using it (other than it's viscosity stability) I would only use conventional motor oil in an engine of our vintage. Link to comment Share on other sites More sharing options...
nic walker Posted July 30, 2017 Author Share Posted July 30, 2017 THANK YOU! !!!! I was hoping for some education. I did not and am now glad that I did not buy any of the Penzoil. Know better now and thanks again, Nic 1 Link to comment Share on other sites More sharing options...
89RedDarkGrey Posted July 30, 2017 Share Posted July 30, 2017 8 minutes ago, nic walker said: I was hoping for some education Then read THIS, weigh the pros & cons, and decide for yourself. Link to comment Share on other sites More sharing options...
drtidmore Posted July 31, 2017 Share Posted July 31, 2017 19 hours ago, 89RedDarkGrey said: but in '88-'91 there were no oils like that available. While I can't see any real benefits of using it (other than it's viscosity stability) I would only use conventional motor oil in an engine of our vintage. I would politely disagree. Mobil 1 was introduced in 1974 and I started using it shortly thereafter in all my cars. I did change from Mobil 1 over to Pennzoil once they introduced their full synthetic (based on the lubricant that they developed for the space shuttle main engine turbo pumps). Yes, that first gen of synthetic used a petroleum-based carrier fluid, but ALL the lubricating and viscosity related components were synthetic. I have had no issues with oil leaks that would not have appeared regardless (dried out oil pan gaskets, etc) and I have had the opportunity to pull open a couple of the engines after many miles and have always been amazed at how damned clean and pristine they look inside. The big advantage with synthetics OVER conventional oil is synthetic's lubrication molecules can handle a LOT more heat without their lubrication properties deteriorating and the fact that it does not sludge up an engine. FULL synthetic oils have simply replaced the petroleum-based carrier fluid with a fully synthetic fluid. This does not really change the lubricant's ability to do its job, but it means that NO fossil fuel was needed or used. Yes, synthetic oil is expensive but I can still hear my mechanical engineer dad saying, "oil is cheap, engines aren't" and this applies even with the price of synthetic oils. 1 Link to comment Share on other sites More sharing options...
89RedDarkGrey Posted July 31, 2017 Share Posted July 31, 2017 I yield to the Gentleman with more usage experience. Link to comment Share on other sites More sharing options...
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