V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

motor oil viscosity...

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Apr 19, 2003 | 01:24 PM

#1

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From: California

motor oil viscosity...

I currently use 10w-30 motor oil. But I was thinking about getting 10w-40. Does 10w-40 provide better protection against heat? What about 5w-30? I here 5w-30 is recommended for new cars...providing better protection/economy. Synthetic is too expensive for me.

Akshay
89 rs t-5

Old

Apr 19, 2003 | 03:48 PM

#2

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Joined: Aug 2002

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From: Gainesville, FL

Car: 1988 Chevy Camaro Hardtop

Engine: Turbocharged/Intercooled 3.1

Transmission: World Class T5 5 Speed

I run 10w-40. Better range of temperature protection. It's slightly thicker.

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