synthetic oil - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

gtfour43 · 04-08-2002, 09:37 PM

My240 you are right. Older high mileage cars need thicker oil and unfortuneately synthetic doesnt come in thick weights. I used 5w-30 in my brand new honda engine and it was fine. After 3,000 miles it was still full. I tried running the same oil in my gf's car with 50,000 miles and it was a quart low within a month. I use 10w-30 for cars with more mileage cause its thicker and doesnt burn as easily.

04-08-2002, 09:37 PM	#6
gtfour43 Leaky Injector Join Date: Mar 2002 Posts: 68 Trader Rating: (0) Feedback Score: 0 reviews	My240 you are right. Older high mileage cars need thicker oil and unfortuneately synthetic doesnt come in thick weights. I used 5w-30 in my brand new honda engine and it was fine. After 3,000 miles it was still full. I tried running the same oil in my gf's car with 50,000 miles and it was a quart low within a month. I use 10w-30 for cars with more mileage cause its thicker and doesnt burn as easily. __________________ 91 Fastback SE

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