# Royal Purple Premium Synthetic High Performance Straight-Grade SAE 50 Motor Oil - 5 Gallon

Modern gasoline direct injection (GDI) engines have achieved levels of power and fuel economy never before possible in passenger car engines. As a result, smaller engines operate at much higher loads across all engine speeds. This has caused increased wear in critical areas of the engine, and created a destructive phenomenon called low-speed pre-ignition (LSPI). The unique, state-of-the-art additive technology in Royal Purple High Performance engine oils is designed specifically to address these issues, and help engines maintain performance and reliability.

-   Enhanced Engine Performance
-   Optimized Fuel Economy
-   Long-term Protection

This Part Fits:

Year

Make

Model

Submodel

1986-1987

Isuzu

Trooper

DLX

1986-1989

Isuzu

Trooper

LS

1986

Isuzu

Trooper

LX

1989-1990

Isuzu

Trooper

RS

1988-1991

Isuzu

Trooper

S

1988-1989

Isuzu

Trooper

XS

## Details

- **Price:** 330.33 CAD
- **Vendor:** Royal Purple
- **Type:** Motor Oils

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 330.33 CAD | In stock |

## Images

- Photo - Primary
- User 1

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/royal-purple-premium-synthetic-high-performance-straight-grade-sae-50-motor-oil-5-gallon)
> Updated: 2026-07-01