Tuesday, August 11, 2009 - 01:34 pm, by: Damian Ware(Frozenpod)
Myles, way to thick, the 15w60 is just about gear oil thickness I wouldn't put it in any engine.
If you read the info on planet soarer Peter Scott liked 5w40 and later on started using 0w30.
I am using Amsoil 5w40 as it has the same properties when cold as most 5w30 10w30 oils but maintains more viscousity (the same as 10w40 oils) even under extreme load than the 5w30 and 10w30 oils.
Tuesday, August 11, 2009 - 08:42 pm, by: Miles Baker(Milesb)
I put 20W40 in my Soarer with no problems at all. Doesn't get down to freezing temps here so no issue. 15W60 wouldn't bother me either. I routinely use 20W50 in plenty of motors.
Tuesday, August 11, 2009 - 09:54 pm, by: Myles Jantzen(Maxx999)
Almost everyone I know says be careful to when going to full Syn as it might cause leaks.
It's around double the viscousity but I go easy after start up and the engine is getting on so I figure I should be safe. More Important to change oil and filter every 5K.
Wednesday, August 12, 2009 - 12:53 am, by: Damian Ware(Frozenpod)
Miles which motors, what are the bearing clearences are what are the recomended factory oil specs.
Myles, full syn causing leaks that is rubbish. Full syn does not cause leaks.
15w60 is much more than double the viscousity compared with the factory recomended weights of 5w30 and 10w30. 15w60 is very close to double the viscousity of magnatec 10w40 which is thicker than factory specs.
Wednesday, August 12, 2009 - 08:02 am, by: Tom Richards(Tomr)
a friend with a celsior ran mobile 1 full synthetic but had high oil consumption/leaks (rear main i think) and had to regularly top up the oil. after swithing to shell synthetic technolgy his oil consumption/leaking stopped. For me if you stick to the SAE the engine was developed to run on (usd500m spent in development)sae10-30, you will see max benefit.
Thursday, August 13, 2009 - 06:03 am, by: Matthew Sharpe(Madmatt)
Penrite is good value because it comes in 5 litre containers, which is just perfect for a 1JZ/2JZ. Occasionally have used it when I haven't been able to get Magnatec at a discount, and no complaints from me.