bmp Posted June 13, 2019 Report Share Posted June 13, 2019 Afternoon everyone. Just preparing to change the oil in my gearbox. It is a PRM150 and has done about 600 hours. I have read on here to do it about every 750 hours. I am planning to do an engine oil change this weekend and thought I may as well do the gearbox as well. ( for info .... Engine is a Canaline 42) My question is about which oil to use in the gearbox. I have read quite a few previous topics on this and there are conflicting posts and I am not sure which is correct. Some people have said to just use the same oil as the engine - "Engine Oil API CC 10w/40" and others have said to use ... mineral 15W40 oil (not synthetic). I have got a manual for the engine so no issues with that, and I know how to do the oil change for the gearbox - just need some guidance on the type of oil to use. Thanks in advance for any help. BMP Link to comment Share on other sites More sharing options...
RLWP Posted June 13, 2019 Report Share Posted June 13, 2019 Just use whatever engine oil you have You will get a lot more oil out if you take out the drain plug than by sticking a suction tube down the dipstick hole Richard Link to comment Share on other sites More sharing options...
bmp Posted June 13, 2019 Author Report Share Posted June 13, 2019 11 minutes ago, RLWP said: Just use whatever engine oil you have You will get a lot more oil out if you take out the drain plug than by sticking a suction tube down the dipstick hole Richard Hi Richard Thanks. Will be dropping it out of the drain plug - hopefully. Link to comment Share on other sites More sharing options...
Guest Posted June 13, 2019 Report Share Posted June 13, 2019 Says on the literature that came with mine and on the website that PRM 150 should use mineral engine oil, not semi or synth. I emailed them about this and they replied that it should only be mineral oil. I use Comma 15/40 or similar mineral oil. Link to comment Share on other sites More sharing options...
bmp Posted June 13, 2019 Author Report Share Posted June 13, 2019 3 minutes ago, catweasel said: Says on the literature that came with mine and on the website that PRM 150 should use mineral engine oil, not semi or synth. I emailed them about this and they replied that it should only be mineral oil. I use Comma 15/40 or similar mineral oil. Thanks.. The engine oil I have is from Engine Plus and it is ... "Multigrade Diesel engine Oil API CC SAE 10W/40". - I cant see anywhere if that is mineral oil or not. I know it is not 15/40 Richard (and others) have said to use the same as the engine oil. I know I am being a bit thick here, but I really dont want to use the wrong stuff and damage the gearbox. Link to comment Share on other sites More sharing options...
cuthound Posted June 13, 2019 Report Share Posted June 13, 2019 CC spec oil is an old specification for diesel lubricating oil (latest spec is CH), so only used for lightly stressed engines and very unlikely to be semi or fully synthetic (or to have many detergents in it). 1 Link to comment Share on other sites More sharing options...
hider Posted June 13, 2019 Report Share Posted June 13, 2019 Cheapest engine oil, it will be all mineral. As temperature is not a big factor on a lightly stressed narrowboat with oil cooler, 10w/40 or 15w/40 is fine, even 20w/50 is usable. Should be changed when you do the engine, 750 hours sounds a lot, what does the book say? 1 Link to comment Share on other sites More sharing options...
bmp Posted June 13, 2019 Author Report Share Posted June 13, 2019 8 minutes ago, hider said: Cheapest engine oil, it will be all mineral. As temperature is not a big factor on a lightly stressed narrowboat with oil cooler, 10w/40 or 15w/40 is fine, even 20w/50 is usable. Should be changed when you do the engine, 750 hours sounds a lot, what does the book say? Thanks for that . I feel better just using the engine oil now. I have the engine manual and a copy of a sheet out of the gearbox manual. It says the bit about mineral oil 15/40 and every 750 hours. I will do it each time I change the engine oil I think - especially if I am using the same oil anyway. Thanks for your help. Link to comment Share on other sites More sharing options...
Tacet Posted June 13, 2019 Report Share Posted June 13, 2019 2 hours ago, RLWP said: Just use whatever engine oil you have I have been trying to think of the most unsuitable engine oil and can only come up with two-stroke oil and Castrol R. Can anyone do better? Or worse? Link to comment Share on other sites More sharing options...
bmp Posted June 13, 2019 Author Report Share Posted June 13, 2019 1 minute ago, Tacet said: I have been trying to think of the most unsuitable engine oil and can only come up with two-stroke oil and Castrol R. Can anyone do better? Or worse? Haha - no dont !!! Link to comment Share on other sites More sharing options...
cuthound Posted June 13, 2019 Report Share Posted June 13, 2019 (edited) 5 minutes ago, bmp said: Thanks for that . I feel better just using the engine oil now. I have the engine manual and a copy of a sheet out of the gearbox manual. It says the bit about mineral oil 15/40 and every 750 hours. I will do it each time I change the engine oil I think - especially if I am using the same oil anyway. Thanks for your help. My PRM manual says every year or 750 hours, whichever comes first. I change my annually at the same time as the engine oil Edited June 13, 2019 by cuthound Clarification 2 Link to comment Share on other sites More sharing options...
hider Posted June 13, 2019 Report Share Posted June 13, 2019 2 minutes ago, cuthound said: My PRM manual says every year orv750 hours, whichever comes first. Fine,never read a PRM150 manual, carry on. Extra on a leap year? Link to comment Share on other sites More sharing options...
bmp Posted June 13, 2019 Author Report Share Posted June 13, 2019 16 minutes ago, cuthound said: My PRM manual says every year or 750 hours, whichever comes first. I change my annually at the same time as the engine oil sounds like a good plan to me. Link to comment Share on other sites More sharing options...
bmp Posted June 13, 2019 Author Report Share Posted June 13, 2019 25 minutes ago, cuthound said: My PRM manual says every year or 750 hours, whichever comes first. I change my annually at the same time as the engine oil I meant to ask .... Do you use the same oil as the engine oil? Link to comment Share on other sites More sharing options...
cuthound Posted June 13, 2019 Report Share Posted June 13, 2019 Yes, I have a Beta 43 & PRM 150 and use Morris Golden Film 10w40 API CC in both. https://www.marinesuperstore.com/engine-bay/engine-oil-additives/morris-golden-film-sae-oil?utm_source=google_shopping&utm_medium=pcn&utm_term=99436797&utm_campaign=MSS&gclid=Cj0KCQjw6IfoBRCiARIsAF6q06twjcL37Zrw4fl-zAXm5wIs986Jao734RaigJGGtPKqvpD4DHxw6NAaArciEALw_wcB Link to comment Share on other sites More sharing options...
Ray T Posted June 13, 2019 Report Share Posted June 13, 2019 May help? PRM-Newage-OwnersHandbook.pdf 1 Link to comment Share on other sites More sharing options...
RLWP Posted June 13, 2019 Report Share Posted June 13, 2019 46 minutes ago, Tacet said: I have been trying to think of the most unsuitable engine oil and can only come up with two-stroke oil and Castrol R. Can anyone do better? Or worse? Nice challenge - let me think about it Link to comment Share on other sites More sharing options...
bmp Posted June 13, 2019 Author Report Share Posted June 13, 2019 11 minutes ago, cuthound said: Yes, I have a Beta 43 & PRM 150 and use Morris Golden Film 10w40 API CC in both. https://www.marinesuperstore.com/engine-bay/engine-oil-additives/morris-golden-film-sae-oil?utm_source=google_shopping&utm_medium=pcn&utm_term=99436797&utm_campaign=MSS&gclid=Cj0KCQjw6IfoBRCiARIsAF6q06twjcL37Zrw4fl-zAXm5wIs986Jao734RaigJGGtPKqvpD4DHxw6NAaArciEALw_wcB Thanks for that... This is what is recommended in my Canaline manual .... https://www.enginesplus.co.uk/product/engine-oil-api-cc-10w-40-5-litres/ 3 minutes ago, Ray T said: May help? PRM-Newage-OwnersHandbook.pdf 611.43 kB · 0 downloads Thanks. Link to comment Share on other sites More sharing options...
jonathanA Posted June 13, 2019 Report Share Posted June 13, 2019 1 hour ago, Tacet said: I have been trying to think of the most unsuitable engine oil and can only come up with two-stroke oil and Castrol R. Can anyone do better? Or worse? EP90 gear oil ? Link to comment Share on other sites More sharing options...
RLWP Posted June 13, 2019 Report Share Posted June 13, 2019 4 minutes ago, jonathanA said: EP90 gear oil ? I think that's the whole point of the 'put engine oil in' advice. I.e. put in engine oil, not gear oil or ATF Richard Link to comment Share on other sites More sharing options...
TheBiscuits Posted June 13, 2019 Report Share Posted June 13, 2019 Sunflower oil? Olive oil? Obviously the very worst would be no oil! Link to comment Share on other sites More sharing options...
RLWP Posted June 13, 2019 Report Share Posted June 13, 2019 Just now, TheBiscuits said: Sunflower oil? Olive oil? Obviously the very worst would be no oil! You use those as engine oil? 1 hour ago, Tacet said: I have been trying to think of the most unsuitable engine oil and can only come up with two-stroke oil and Castrol R. Can anyone do better? Or worse? Link to comment Share on other sites More sharing options...
jonathanA Posted June 13, 2019 Report Share Posted June 13, 2019 Lavender oil might smell nice while it seized up ... @rlwp you might be missing the joke ? Link to comment Share on other sites More sharing options...
TheBiscuits Posted June 13, 2019 Report Share Posted June 13, 2019 14 minutes ago, RLWP said: You use those as engine oil? Not in my engine! There are youtube clips of people who have tried it. It kind of works for a short period then bad things happen. Link to comment Share on other sites More sharing options...
Ex Brummie Posted June 15, 2019 Report Share Posted June 15, 2019 Drained my PRM 150 today and the oil was straw coloured/ dirty. Refilled with new Morriss' 20/50, and had the usual problem of identifying the level. Closed up and ran for a while, and then checked the level again. This time, the level showed up and was 'milky' and also high. I drew some out with the vacuum pump, still milky, and checked the level again, this time OK. The 'milky' oil I had removed had by this time, reverted to normal oil and clear. I am hoping that it was just aeration from being pumped round the box. it does pass through an oil cooler in the Jabsco raw water circuit, but there was no sign of water in the old oil, or in the small amount that had settled in the vacuum pump. It is the first time I have ever checked the oil level immediately after running the engine, but maybe someone else has with the same result. I'll obviously check before next starting the engine. Link to comment Share on other sites More sharing options...
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