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I have a 1995 Toyota T100, just bought it with 224k.

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Excellent condition great service records...
I have a 1995 Toyota T100, just bought it with 224k. Excellent condition great service records but the oil pressure drops after running awhile. It's good at first start. The vehicle seems to run great but that's concerning. Should I pay for a compression check? Thx! Sue P
Submitted: 8 months ago.Category: Toyota
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Answered in 4 minutes by:
11/12/2017
Toyota Mechanic: Toyota Service, Toyota Expert replied 8 months ago
Toyota Service
Toyota Service, Toyota Expert
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Experience: 30+ Yrs of auto experience, Award Winning Svc. Manager; Just Answer Customer's Choice Award Winner
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Hello. Welcome to Just Answer. Please allow me to assist you. A compression check will not reveal much about a loss of oil pressure, as that only tells you what the cylinders are doing, not oil pressure. With 224K miles on it, it is safe to assume that there are some excess clearances in the crankshaft bearings. Main oil pressure goes to the crankshaft first; any excess clearance is causes oil pressure loss. To restore proper oil pressure at 224K miles, it would be a very good idea to move up a grade of oil. If you are using 10W-30, 20W 40 would be a good move, and, see if you can locate "high mileage' labeled on the oil containers. A slightly thicker weight of oil would be the recommendation at this point in the life of the engine. If you have any questions, please reply. Please do confirm that you have received my input. Thanks.

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Toyota Mechanic: Toyota Service, Toyota Expert replied 8 months ago

If you have any questions, please reply. Please do confirm that you have received my input. Thanks.

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