Leakdown results and oil use
#1
Burning Brakes
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Join Date: Dec 2003
Location: SoCal
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Leakdown results and oil use
Hi there,
I posted a topic a week or so ago about my oil consumption, about a quart every 500-600 miles, and it was suggested I take my cab in for a compression check and leakdown.
I've been nervously waiting for the results, which just came in - the car looks awesome, 2%-5% leakage with 190-200psi.
The only thing my mechanic could come up with is that we're using a very thin oil - a German synthetic, 5w-30 - he wants to do an oil change to a thicker M1 or GT1 synthetic and see if that stops the usage.
Any thoughts on this? Thanks as always!!!
I posted a topic a week or so ago about my oil consumption, about a quart every 500-600 miles, and it was suggested I take my cab in for a compression check and leakdown.
I've been nervously waiting for the results, which just came in - the car looks awesome, 2%-5% leakage with 190-200psi.
The only thing my mechanic could come up with is that we're using a very thin oil - a German synthetic, 5w-30 - he wants to do an oil change to a thicker M1 or GT1 synthetic and see if that stops the usage.
Any thoughts on this? Thanks as always!!!
#2
RL Technical Advisor
Hi Rick:
Those leakdown figures are excellent.
IMHO, you should not be using an oil that thin unless its well below freezing.
If you use 15w-50, your engine will be much happier in your climate.
Those leakdown figures are excellent.
IMHO, you should not be using an oil that thin unless its well below freezing.
If you use 15w-50, your engine will be much happier in your climate.
#3
What a relief that leakdown test has to be for you! No point in doing anything more complicated until you've tried a thicker grade of synthetic, tho I'm sure no expert. Joe W