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F1 and some other race engines need to be pre warmed because the tolerances are so much tighter than street engines that if they were cold started the engines would seize from oil not being able to flow through the tight spaces.
Large ship engines are pre warmed too.
The ship engines and race cars normally use accumulators to move the oil before start up.
Warm starting seems to be more important to wear prevention than pre lube.
Also using block a heater has proven to save fuel.
Dont use 0w or 5w-20 oil unless you are looking for more engine wear.
There is a 1% fuel economy difference between 5w-20 and 10w-30 weight oil. The wear difference between the two is much more than 1%.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
Last edited by oil pan 4; 05-03-2014 at 06:46 PM..
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