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Oil Confused To Death

pastorscott

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pastorscott Enthusiast

pastorscott

Posted
Posted

spent hours reading pages of testing by Royal purple, Amsoil, Mobil one and all the rest. they all claim some great thing with Amsoil claiming to be the best in the world and tearing Royal Purple to shreds. What gives and buy the way, what is the gear oil to be used in my 04 burb rear end. 75x80.90.140 ????

 

thanks Guys

 

Scott ( lost in a slipping mess )

lpetersonjr Enthusiast

lpetersonjr

Posted
Posted
spent hours reading pages of testing by Royal purple, Amsoil, Mobil one and all the rest. they all claim some great thing with Amsoil claiming to be the best in the world and tearing Royal Purple to shreds. What gives and buy the way, what is the gear oil to be used in my 04 burb rear end. 75x80.90.140 ????

 

thanks Guys

 

Scott ( lost in a slipping mess )

 

Scott, your '04 burb and it calls for synthetic 75W90 GL5. Same regardless of 5.3L, 6.0L and 8.1L. Same as my '04 Z71 'Hoe.

 

Lynn

dgruginski New Member

dgruginski

Posted
Posted

any quality motor oil works...when's the last time you've heard of engine failure caused by motor oil...mostly the claims are a bunch of hype. If it was so important there would be a lot more hard evidence concerning wear and failure. All you get is claims that such and such oil is better because it has more "insert magic ingredient here". Also, if there was clear cut evidence of one oil being better than the other then we wouldn't have all the controversy when it comes to oil. We'd have scientific proof with verifiable numbers of engines performing better and lasting longer instead of all this anecdotal evidence.

Norseman Senior Enthusiast

Norseman

Posted
Posted

Hey if you are looking to use syn oil, just use Pennzoil Platinum it's just as good as Mobil 1 and costs less.

 

Have fun with your search but, I wouldn't lose sleep over it.

Black02Silverado Senior Enthusiast

Black02Silverado

Posted
Posted
spent hours reading pages of testing by Royal purple, Amsoil, Mobil one and all the rest. they all claim some great thing with Amsoil claiming to be the best in the world and tearing Royal Purple to shreds. What gives and buy the way, what is the gear oil to be used in my 04 burb rear end. 75x80.90.140 ????

 

thanks Guys

 

Scott ( lost in a slipping mess )

 

 

Tearing Royal Purple to shreds? Where did you read that? Interesting, I wasn't aware that AMSOIL did a study against them. It can really be confusing on all the oils out there. It falls on the line of what you feel works for your application. Royal Purple, Redline and AMSOIL all have Group IV oils. Which group IV is the cream of the crop for automotive lubricants that is readily available. Mobil 1 just went from a group IV to a group III but didn't lower the price which has not gone over well in the "consumer oil internet world" You can see why they did it more $$$$$ for them, can you blame them? It is all about the mighty $.

 

Today's oils dino or synthetic have come a long way and will protect well with the average consumers 3k to 6K oil change. If you go longer then the synthetic line is a better choice, but there are brands of dino oil that have gone to 8k with no issues.

 

Like stated above, Pennzoil Platinum is a great group III and at a lower cost than Mobil 1.

 

Unless you want to go to extended drains or do a lot of towing/hauling and really work your vehicle most brand name oils work well. I prefer a group IV oil when it comes to a hard working engine. Better cooling abilities of the oil and able to hold up to the higher temperatures.

 

Royal Purple, Redline and AMSOIL are great synthetics. They are not equal, as in they are all created differently and each company has its own formulation. Until a major "financial" party steps forward and conducts a nonbiased 100% study on all the major oils out there and see where they rate you will always have a difference of opinion, one claiming better than the other. Not to mention those out there that will just flat out not believe either.

 

Your rear diff calls for a synthetic 75w-90.

 

On a side note, having an oil analysis done is a nice little tool to see exactly how your vehicle is running. All might seem fine on the outside but inside can tell a good bit of information as to the running condition of your vehicle. Case in point, my sisters 99 Corolla was running fine and all seemed well. I did an analysis on it and it came back less than stellar with only 10k miles on the oil. Turns out the Bosch plugs that were put into it was causing it to run rich. The oil was getting broken down from fuel causing higher than normal wear metals. Changed out the plugs to NGK, which is recommended by most Toyota owners and Bingo, her mileage went up and the next analysis showed no issues. Mostly it isn't the oil that causes the problem for it to turn a bad analysis, but it is the running condition of the engine that kills the oil and hurting the engine. Like a leaking intake system or bad air filter allowing dirt to get in, sticking injector or a bad O2 sensor. Get your vehicle fine tuned and burn a sample to make sure and you can go a long time on an oil change.

 

I know our vehicles are not air born but just a little info for those that are interested. All the fighter jets here on base get an oil analysis at the end of the flying day. The oil doesn't get changed on a regular schedule but only gets changed when the engine comes in for other maintenance that requires the oil system to be opened or if a negative analysis shows a downward trend over a certain time frame. Otherwise they run a really long time on the oil.

still_steamn Enthusiast

still_steamn

Posted
Posted

I'm an Amsoil user. Amsoil takes pride in providing only the finest synthetic lubricants that can be produced. They have published many test results showing Amsoil lubes taking on all the competitors, with the Amsoil product coming out on top in almost every conceivable test. The test results are published and available to the public. I think you will find these on the Amsoil web site. No competitor has ever disputed the Amsoil test results. If you are going for extended drain intervals, synthetic is the only way to go and you can guess my choice of brand. I went 70,000 miles in 5 years using Amsoil 5W-30 with only filter changes (using a bypass filtration system) and top-offs in my 1999 Silverado 5.3L, only changing the oil after my annual oil analysis showed my TBN number (Total Base Number, indicating acidity level) had dropped too low.

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