Gulf Western - Premium Gold 15W40

SR5

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I've never paid much attention to Gulf Western Oil, but it's an Aussie own company that has been around for just over 30 year. Their Premium Gold 15W-40 just caught my eye, it's a semi-synthetic that is on sale right now at SCA at just under $22 for 5L API SN-Plus, SN/CF KV100 = 14.9 cSt TBN = 6.5 (ASTM D2896) SA = 1.2 % (ASTM D874) It's the first SN-Plus 15W40 that I know of. Also it seems to have a lowish TBN for a rather high Sulphated Ash (SAPS) level. Maybe elevated ZDDP ?? Does anybody know anything else or have any experience with this company or oil ?
 
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I've used their Top Dog diesel oil before, contacted them to see what oil to use for a new rebuild and they said this. Found it fine in use nothing to complain about.
 
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I used the Top Dog in my XT600 - all this talk about improved shifting on bikes, I've never noticed it....except for this oil. Turned a nasty knotchy gearbox silky smooth. I have used a few of their oils...10W-40, and gearoils, all good as far as that goes.
 

SR5

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For comparison Nulon 15W40 mineral, API SL/CF Kv100 = 15.09 cSt, TBN = 6 (D2896) Sulphated Ash (SA) = 0.8% (D874)
 

SR5

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I spoke to Gulf Western today, and they were most helpful and open. Their premium Gold 15W-40 SN+ has regular ZDDP levels.
 

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Originally Posted by peejaycruiser
I've used their Top Dog diesel oil before, contacted them to see what oil to use for a new rebuild and they said this. Found it fine in use nothing to complain about.
Originally Posted by Silk
I used the Top Dog in my XT600 - all this talk about improved shifting on bikes, I've never noticed it....except for this oil. Turned a nasty knotchy gearbox silky smooth.
Speaking to Gulf Western today about ZDDP in oils, they suggested I consider their Top Dog range
Quote
You could also consider our diesel engine range which also carry API SL or higher petrol engine performance and have zinc levels of over 1,000-1,250ppm (0.10 - 0.13%) Top Dog XDO 15W-40 (mineral) has around 1,100ppm zinc Top Dog Global Mineral 15W-40 has around 1,250ppm zinc Top Dog Global Plus 10W-40 (semi-synthetic) has around 1,250ppm zinc
Good honest answers from Gulf Western.
 
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