Oil question Castrol GTX 20W 50 vs Castrol Grand Prix 20W 50

[Laverda SF]

not sure how long I need to run the freshly rebuilt 82 1200 engine on dinosaur oil, but with fresh rings and so forth I am thinking maybe 1,500 + miles before switching to the Amsoil synthetic??
Paul LeClair

It's up to you but wouldn't I stick with Diesel DINO and chnage to Oil every Season or 2nd year - Are you running Air Filters? - Another Factor.

 

[laverdas]

Hi all. Zinc salts, apparently there are 3 good reasons why they are in your oil .not saying its why they are there but here are the options
1, Zinc Chloride could be acting as a biocide to stop biodegradation of the oil.
2,If its as zinc phoshate it will be a good corrosion inhibitor if/when the oil gets old and can have acid breakdown products,which would otherwise attack the engine.
3, It might just help maintain the vicosity and the life of the oil
Regards andy

 

[Laverda SF]

Open Carb or Carb Air Filter, Nylon/Paper Oil Canisters Vs Screens... etc.

ACDelco 15w-40 Diesel, for the price in Canada, is about the best you can do for the price when things get DIRTY and our Old Breganzies do tend to get DIRTY.

Just change the Oil more often for 1/3 the price. It will save your Breganzie Mill - Just don't prolong it in Racing Mode where I would look for Diesel DURON 15w-40 without the "E" factor.

 

[Laverda SF]

Castrol GTX Oil is a Piece of SHIT for our Breganzies - It's Pony PISS.
Can you twist a wrench on a Jap Bike without it disintegrating?

 

[drikko]

fresh built engines we ask the owners to stay on Penrite mineral based oil for 1,000 klms
after that don't care what they use as long as it is not Castrol

do not run your engine in on any synthetic or semi synthetic oil whatever you do

Which Penrite and where does one purchase it in brissy?

 

[motoddrob]

Which Penrite and where does one purchase it in brissy?

Hey Drikko, Penrite is available from any of the auto stores, I get mine from Stupid Cheap. I'm a little confused regarding what to use, years ago when in Sydney I used HPR30, then Marty, when working for Penrite at the time said they changed the formula and I should use HPR30Gas which I have since. Noticed the price sky rocketed a couple of years ago compared to
HPR30, checking an old container I noticed the Gas was now semi syn and I have trouble finding HPR30Gas but the shelf is full of HPR10Gas so have been using that. For the BM I use HPR30.
I would prefer using HPR30 as it's much cheaper as I change oil every 1500kays. Marty, if you read this can you explain why the need to use the Gas over the standard mineral oil.

 

[Terry Dymond]

I use Penrite HPR GAS 20W-60 high performance mineral oil.  Label says it's a full zinc oil, suitable for four stroke motorcycles with wet clutches (amongst other things). Meets requirement API CG-4/SL (whatever that means).
Available at most reputable servos.

 

[Terry Dymond]

Just seen the Rob's post, HPR GAS is available in Adelaide (Woodside Servo)

 

[drikko]

The penrite site has Lavs listed and recommends MC-4ST 20W-50 FOUR STROKE PREMIUM MINERAL which of course isn't available in supercrap but is from my local auto shop.

 

[Laverda SF]

I gave Paul the Oils he should look into that are available for our Breganzies in Canada.  HIC!

It's up to him to research my info and make a choice.

 

[Jugs_S]

I've been using the HPR Gas due to its higher zinc levels and "suitable for higher ambient and load conditions" over HPR30 but have gone to "Penrite Running in oil" for the first oil change after a full rebuild or good ring bed.

I'm planning to revisit all the spec sheets as Penrite has had some formula changes but I think the HPR Gas looks good.

Jugs_S

 

[Dellortoman]

I'm wondering if "running in oil" means it's a slightly crappier lubricant than normal oil, so as to allow a little bit of wear to polish the high spots off rubbing surfaces

Perhaps if you continue to use it after running in, you'll run the engine all the way out again.

 

[Laverda SF]

One thing, about a Breganzie is that they are Fast yet NOT that Fastest but Fast enough to be a Winner, if you have the gall, no matter what oil is in the crankcase; but I do suggest you read back to my previous post regarding 1,2,3 Oil recommendations of Oil for Breganzie's and highly consider my choice of Oil available for a Breganzie in Canada.

Why I'm here after 45 years riding a Motorcycles other then a Bregsnzie is my ride of choice considering she's a God Damn PIG at times.

 

[motoddrob]

I use Penrite HPR GAS 20W-60 high performance mineral oil.  Label says it's a full zinc oil, suitable for four stroke motorcycles with wet clutches (amongst other things). Meets requirement API CG-4/SL (whatever that means).
Available at most reputable servos.

Hi Terry,
Haven't seen HPR30gas on the shelves for sometime, maybe I'm looking in the wrong shop!!, so have been using the HPR10gas. Label says it's semi-syn. I'm not bother about synthetic oil, would prefer to use a good mineral oil and change frequently. Is the HPR30gas a mineral oil??. I was shocked by the price of the 10gas compared to the HPR30 non gas but then saw the label saying it's a semi syn. If the 30gas is mineral, I'll be looking harder for a supplier. When I ran my motor in I used cheap Valvoline and changed it at 150 kays, 600 kays then 1500 kays I switched to the HPR10gas.

 

[Terry Dymond]

G'day Rob,
Yep, it's a mineral oil. Not specifically for bikes but from the blurb on the back says it's for high usage vehicles such as taxis.
Been using it for years without any side affects that I've noticed.

 

[chrisk]

G'day Rob,
Yep, it's a mineral oil. Not specifically for bikes but from the blurb on the back says it's for high usage vehicles such as taxis.
Been using it for years without any side affects that I've noticed.

Well that fits the Dymond bill to perfection! High milage ...... yellow taxi type vehicles.

 

[Terry Dymond]

In top form Chris
OK, how do open the dooverlacky in your post?

 

[Simonr501]

I particularly like this bit on the Amsoil website:

'2012 Harley-Davidson FXDB Dyna Street Bob motorcycle - the engine was subjected to extensive idle time broken by short bursts of engine revving to simulate the intense heat conditions of a rally or parade route'.    Show Ponies!!!!!!

 

[Rusty Spokes]

thanks, all!

for better or worse I went and bought a case of 12 liters of Amsoil Motorcycle Synthetic 20W 50 from a local wholesaler, had to go to his residence to pick it up  , all very odd.... anyway, $160 CDN all in, so about $13 and a bit CDN per liter. It is used by a lot of the local air cooled Harley crowd who claim it greatly reduces engine operating temperatures and it is supposedly the best thing since sliced bread........... anyway, the Amsoil is going into the 79 1200 and the 84 RGS, plus a couple of non Laverda's. The 82 Laverda 1200 TS Mirage Series 2 is still breaking in the fresh engine, so I also dropped by Canadian Tire, which had Castrol 20W 50 Grand Prix motorcycle oil on sale for $4.49 per liter, I bought all 5 liters they had in stock, asked to buy a case but they didn't have any more stock.

not sure how long I need to run the freshly rebuilt 82 1200 engine on dinosaur oil, but with fresh rings and so forth I am thinking maybe 1,500 + miles before switching to the Amsoil synthetic??

I have run the Amsoil synthetic previously in both the 84 RGS and the 79 1200 for extended periods with no issues and especially no clutch issues, and with frequent oil changes anyway hopefully there will not be any issues.

Paul LeClair

Paul..run some HDEO like Rotella 15w40  (JASO approved for wet clutches) or Delo 15w40 Dino oil for the first 500/1000 miles then go to your synthetic engine oil ...Amsoil is good oil..unfortunately sold "multi-level-marketing" with all kinds of wealth building fantasy for the Amsoil distributors..which is why it is sold in the backyards somewhere. 

 

[Simonr501]

Amsoil is good oil..unfortunately sold "multi-level-marketing" with all kinds of wealth building fantasy for the Amsoil distributors..which is why it is sold in the backyards somewhere. 

Am I allowed to say Pyramid scheme?