I am breaking in a rebuilt from the ground up 12ht and will be using Penrite 10 tenths 15w40.
I am planning to run 10 liters of this stuff for the first drive, approximately 20-50kms, go home then drain & replace the oil filter and pour in a new batch to get rid of the break in metals and assembly lubes. ( I know its a bit wasteful but I want to be extremely safe with a 12HT but please do educate me if this is not necessary ). New clean batch would then be ran for 500-1000kms before switching to normal oil.
So the 10 liters already sitting in the engine with the initial first start has 1600ppm+ zinc according to the label. Everything ran fine and idle is good and smooth, now just waiting to go for a proper drive.
So I bought another 10 liters of the same Penrite 10 tenths 15w40 for my plan but instead received an "upgraded" batch and it has 3500ppm zinc according to the label. I bought it online since it was cheaper than in stores.
Did some quick search and apparently 3500ppm zinc is too slippery and causes piston rings to not seat in properly and becomes corrosive to metal, according to the general consensus online, this is too much zinc even for a break in and would do more harm than good.
Should I run with this oil? It must be viable since its circles the market well enough for me to get it without asking for it. There isn't much details on breaking in a 12HT online or in the engine manual and I feel like I am overthinking this break in run too much and everything I have said could just be thrown in the trash, but would appreciate any opinions or experience on this matter. Thanks
I am planning to run 10 liters of this stuff for the first drive, approximately 20-50kms, go home then drain & replace the oil filter and pour in a new batch to get rid of the break in metals and assembly lubes. ( I know its a bit wasteful but I want to be extremely safe with a 12HT but please do educate me if this is not necessary ). New clean batch would then be ran for 500-1000kms before switching to normal oil.
So the 10 liters already sitting in the engine with the initial first start has 1600ppm+ zinc according to the label. Everything ran fine and idle is good and smooth, now just waiting to go for a proper drive.
So I bought another 10 liters of the same Penrite 10 tenths 15w40 for my plan but instead received an "upgraded" batch and it has 3500ppm zinc according to the label. I bought it online since it was cheaper than in stores.
Did some quick search and apparently 3500ppm zinc is too slippery and causes piston rings to not seat in properly and becomes corrosive to metal, according to the general consensus online, this is too much zinc even for a break in and would do more harm than good.
Should I run with this oil? It must be viable since its circles the market well enough for me to get it without asking for it. There isn't much details on breaking in a 12HT online or in the engine manual and I feel like I am overthinking this break in run too much and everything I have said could just be thrown in the trash, but would appreciate any opinions or experience on this matter. Thanks