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Synthetic Oil in Trailblazer 302

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  • Sberry
    replied
    I got a couple engines I am going to run synth in, going to see if I can make the season with single change. One doesn't get that many hours, called for 30 wt and with dino nothing but that seemed to work right, had hi temp oil pressure drop but the 5-40 synth seems to be working and is really noticeable at low temp starts. I had been changing it to a multi dino for winter, hours and loads were low as were temps but its a pain, looks like the synth is going to work and the savings in a couple filters minus a whole change,, and service when busy may pay. Just put it in Kohler lawn mower too, gonna go for 250 hrs or so before I even think about it again. Been trying it in some golf carts too, they really get pounded here, over heat, over load, etc. Might be able to make those on 2 changes or so a year. I had been changing about once a month when they work hard.
    Might cost more but last longer and in some equipment reduce the need for change just due to seasonal temps.

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  • Miller John
    replied
    Great conversation guys. Use the same viscocity synthetic oil as the manufacturer recommends for standard oil after break in. It is recommended to run 100-200 hours wth conventional oil to break in the engine. Synthetic oil is great for small engines. If you want your engine to last a long time, stay away from Ethanol based fuels as well.

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  • Corbinworks
    replied
    Originally posted by shortarc View Post
    Might not be the right # for Kohler.
    yeah thats the motor mine has..

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  • shortarc
    replied
    Originally posted by Corbinworks View Post
    I have always used RedLine in my bikes & Quads but when I am not using syn oil I use rotella...I still have 11 hr's b4 my first oil change on my 302..What are you guys using for filters?
    Mine has 1500 hrs. on it with nothing but Mobil one after break in. I use Wix filters the # is 51394. Just thought to add mine has the Subaru engine on it. Might not be the right # for Kohler.
    Last edited by shortarc; 08-04-2011, 04:55 PM.

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  • Corbinworks
    replied
    I have always used RedLine in my bikes & Quads but when I am not using syn oil I use rotella...I still have 11 hr's b4 my first oil change on my 302..What are you guys using for filters?

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  • davedarragh
    replied
    Synthetic vs Conventional Oil

    The major difference between Synthetics and "regular" oil is in the molecular structure. Conventional oils, refined and distilled from crude, have an uneven molecular structure, and have limits regarding hi and low temps.

    Due to this "uneven" molecular structure, conventional oils are best suited during the "break in" of engines. Minor irregularities in castings and machining promulgate the use of conventional lubricants "filling the gaps."

    In extremely low temps, conventional oils form sludge, and at high temps, the chemistry of the oil can break down into sulphurs, waxes, and promoting pollutants.

    Synthetic oil, on the other hand, has a near perfect molecular structure, as it's produced chemically. These oils have been tested to -62F with no change in viscosity. Oil temps have been monitored as high as 400F without breakdown in chemistry.

    The major drawback, is the price of synthetics. It can be a trade off of "insurance" for prolonging the life of an engine, once "broken in."

    Those of us who are old enough to remember "Lithium Grease," have seen the extremely hazardous material, "Lithium Hydroxide Monohydrate" virtually disapear from the industry.

    The largest stockpile of this material was once stored at DOE's High Assay Uranium Enrichment Plant, near Portsmouth, Ohio. Once used as a catalyst in weapons grade Uranium, was all sold to grease (Nat'l Grease, Kansas City) and battery manufacturers (Union Carbide) in the mid 70's, about the time Mobil was perfecting synthetic oils.

    It was a very caustic material and an extremely high respiratory irritant.
    Last edited by davedarragh; 03-18-2010, 12:04 PM.

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  • SundownIII
    replied
    I suspect that Lincoln is being cautious with their oil recommendations, especially regarding break-in.

    Most manufacturers caution against using synthetics during the break-in period. Internal parts need to wear in or seat. Often times, this doesn't happen when the engine is started off on synthetics.

    After the break-in period, I think it's been proven that the synthetics have their advantages.

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  • Frank Motoweld
    replied
    Mobil1 is 100% synthetic

    http://http://www.mobiloil.com/USA-E...s/Mobil_1.aspx

    Mobil does make synthetic blend oils but the Mobil1 line is fully synthetic 100%
    Last edited by Frank Motoweld; 03-16-2010, 07:48 PM.

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  • FabTech
    replied
    Amsoil


    http://www.amsoil.com/

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  • MrBill
    replied
    I agree with you JL. I have Amsoil in everything. Car, truck, bike, lawn tractor, Kubota ATV and Chainsaw. Even use it in my gas radio controlled helicopter. lol

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  • JL_Welding
    replied
    Go with Amsoil, If you need help finding it I can order. I am a dealer

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  • atc250r
    replied
    Originally posted by Pat View Post
    I suspect you are correct. I think I read where Mobil changed their base stock because of some loop hole that was opened when some consumer laws were changed that allow a "Synthetic Blend" to be called synthetic. I guess the word blend has to appear somewhere on the container. I wonder how many people get home and realize that "the bargain" they just got on synthetic oil is actually just a blend. I am curious as to how much synthetic has to be in it to call it a blend.
    I've read elsewhere that semi-syns are usually 80dino/20syn

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  • Pat
    replied
    Originally posted by koreanbeefcake View Post
    i read somewhere that all mobil 1 is no longer FULLY synthetic. its like a 90/10 , blend.
    I suspect you are correct. I think I read where Mobil changed their base stock because of some loop hole that was opened when some consumer laws were changed that allow a "Synthetic Blend" to be called synthetic. I guess the word blend has to appear somewhere on the container. I wonder how many people get home and realize that "the bargain" they just got on synthetic oil is actually just a blend. I am curious as to how much synthetic has to be in it to call it a blend.

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  • koreanbeefcake
    replied
    i read somewhere that all mobil 1 is no longer FULLY synthetic. its like a 90/10 , blend.

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  • Frank Motoweld
    replied
    Synthetic oil

    I'd run Mobil1 or comparable quality synthetic oil and be done with it.And just to give you an idea on how good it is,after 400 000kms+ on my motorcycle,the honing pattern is still easilly seen in the cylinders.Plus we run 5w30 Mobil1in the race bike cause we get 5mph extra on top speed over 15w50 and never broke because of oil yet.
    Frank

    I dont even want to try to calculate how mamy hours of running time that was
    Last edited by Frank Motoweld; 03-06-2010, 06:22 PM.

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