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Message started by antmanbee on 08/29/18 at 17:04:37

Title: Good deal on Shell Rotella T6 5W-40
Post by antmanbee on 08/29/18 at 17:04:37

https://slickdeals.net/f/11981107-4-gallons-of-shell-rotella-t6-5w-40-full-syntheticdiesel-engine-oil-48-after-28-rebate?v=1

From Amazon or Jet after MIR

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by batman on 08/29/18 at 19:31:51

It may be better to buy a gallon when you need it( Walmart is air conditioned),the reason I say that is because you live in NE FLA . I lived in Jacksonville for a couple of years myself, and unless you have a basement or other area at home that doesn't see drastic temperature swings you won't be able to store the oil long term. 100F in summer and 40F in winter and the daily swings , will ruin the oil before your able to use it all.

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by justin_o_guy2 on 08/30/18 at 09:08:02

Huh? Dang, Batty, I've been buying gallons and storing them for a couple of years. I don't wanna be messing things up, so, can you explain that a bit more?

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by Dave on 08/30/18 at 09:31:53

Shelf life is about 5 years - it is best to store it where it doesn't get really hot.....I don't know if cold hurts it.

https://www.yourmechanic.com/article/what-is-the-shelf-life-of-motor-oil

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by justin_o_guy2 on 08/30/18 at 09:36:58

Yeah, well, if a little over 100 is hot , I'm not storing it right. I doubt I've had any over three years. But my attitude towards oil has been Wrong.. I've been treating it like it's inert unless it's in a motor..

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by batman on 08/30/18 at 22:48:14

Jog from what I 've read, temperature swings that break down the oil.If I store it in my basement it will stay at a fairly level temperature of around 55-60F all year around ,but if stored in my garage the swing can be 90 to as cold as -25F seasonally , and today the high here was 90F but right now 1:28 am it's 57F . These swings are said to brake down the oil .I can't think of where I read this ,but It seems right ,I believe it's recommended that you change oil in a car at least twice a year regardless of mileage, so it may have some basis in fact.

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by justin_o_guy2 on 08/31/18 at 03:58:25

Well, oil is cheaper than engine parts,,

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by hotrod on 08/31/18 at 07:59:43

It's been stored in the earth for thousands of years. That's good shelf life. ;D

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by batman on 08/31/18 at 11:17:32

I looked on line again ,oil can be stored up to 5 years ,but should be stored at temperatures between 40F and 85 F . That would rule out storing it, long term, in most garages .

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by justin_o_guy2 on 08/31/18 at 21:16:17

I don't get it, but I'll go with it.

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by Chance on 09/01/18 at 06:02:26

Never thought about temperature swing affecting oil, but it makes sense. Temp swing affect everything else...sage advice.

Chance

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by hotrod on 09/01/18 at 09:54:59

I have used oil that has been stored for 10 years or longer, and was happy to get it. Think of all the temp. changes every time the engine is started. There could be something to this, but I'm too thick headed to accept it. I know I could be wrong. Can't let go of my metal, push through the top, oil can opener.

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by GOF on 09/01/18 at 10:15:06

28010D0D051251600 wrote:

I have one of those old oil spouts somewhere around here. And I remember using it way back when.

Not sure I'm convinced about the shelf life thing. But no big deal. I don't 'stock' oil. I have a little on hand for top offs and such. But buy as I need.

I have seen oil so cold that it pours slower than molasses and looks like a butterscotch snowcone. Makes me not want to start an engine at subzero temps.

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by Dave on 09/01/18 at 15:20:34

0E272B2B233477460 wrote:

It is very likely that the degradation/shelf life recommendation of 5 years is a bit conservative.....and necessary for 100% performance of the oil. Perhaps at 10 years the oil still performs at 95% of the original rating - who knows for sure.

I have also used oil that was 10 years old and it worked fine for use in our daily driver car....which had over 272,000 miles on it and was still running strong. When the local Meijer store had a half-price close out on the gallon jugs of Castrol Syntec that my wife's car used - I bought all they had, and it was enough oil that I never had to buy another gallon for the rest of the time she owned the car.

Title: Re: Good deal on Shell Rotella T6 5W-40
Post by batman on 09/01/18 at 20:15:47

The base oil may well survive 10 years ,but I'd be worried about the additive package that allows them to work as multi weight oil. Living up north I'm only riding about 3,000 miles a year, even if I do complete oil and filter changes each spring I would use 4 gallons for over 5.3 years .Spending $5.28 a year more to insure the life's blood of my motor is fresh , rather than 2 to 5 year old oil, seems a small price to pay. but each can make up his own mind , I ,like the people in Canada have been classified as "severe use" as far as oil life is concerned .