Cobra427,
Amsoil is probably one of the best oils around, but I find them hard to believe with all their claims, as always being better than any other
oil know to man - period!!!!!! Bull***t
A lot of engine builders say dont use
synthetic but use that
oil, when you see the makeup of the
oil its normally
synthetic based. Using mono grades has its problems in fact they are rubbish for the road or even track sometimes, this is what happenend to me:
My 650bhp injected, dry sumped Cobra came with Valvoline 50 racing monograde, you would go down the road on a cold day oil pressure would start at about 80psi it then would drop down to 35 when hot, this is just cruising, and you had to go through a great carefull warming up process (which I normally do) I then tried Synracing 15/40 Valvoline not much better, and they say this oil can be used on the road as well. The was a engine shop in town with a van which had Valvoline is the best oil on it for advertising - not!!!
I decided to go back to Castrol RS
Synthetic 10w/60, oil pressure was 70psi cold and 60psi HOT HOT even when I left the oil cooler cover on and temperature went to 260F it still had 60PSI. All this proves it that the above Castrol oil is temperature stable, and they recommend it for road and racing!
I am not suggesting its a better lubricant than other oils.
I cant comment on Nascar or other types of racing where the vehicles are doing a continuous 7000-8000 rpm, but I would imagine Castrol and most other oil manufactureres have an oil to suit. The most important thing is to change oil at recommended intervals, and for a Cobra which might only see a few thousand miles a year, then once a year would be sufficient, and if you are like me once the car gets used it always gets a decent warm run.
Why is it that
Amsoil is always challenging other oil makers to do these oil comparison tests, which are on the internet, and
Amsoil is ALWAYS better, in fact anything Amway/Amsoil does is always better, and better quality than anyone else. DO THEY HAVE THE LEASE ON BEING THE BEST AND ALWAYS HAVE THE BEST TECHNOLOGY?
Ant, the not so gullible Cobra owner!